题目内容
（请给出正确答案）
A sample of HgCl2;weighing 9.41 g is dissolved in 32.75 gethanol (C2H5OH).
The boiling point elevation of the solution is1.27℃.Is HgCl2an electrolyte in ethanol？
Show your calculations.(Kb=1.20K·kg·mol-1)
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第4题
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第5题
A、There were many cold conflicts in the cold war, such as weapon competition and spying.
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第6题
For most of us, dieting is a frustrating fact of life. With so much conflicting nutritional information about, it can be difficult to tell which weight-loss strategies really work. Let's start by discounting these confusing myths.
(1)All calories are created equal
What you eat, not how much, is the main factor behind weight gain, according to research. Calories from fat pack on the pounds. The reason: during digestion, the body bums many more calories metabolizing protein and carbohydrates than it does metabolizing fat.
(2)Desserts are taboo
Cakes, pies and ice cream can sensibly be worked into a diet, the expert says. Moderation is the key. Cut down on other meals if you'11 be eating out at a restaurant known for its rich sweets. Or indulge, but take only a few bites.
(3) Fast foods are forbidden
A plain hamburger on a bun is still a healthful choice. So is grilled chicken or a green salad with low-cal dressing. But watch out for French fries, milkshakes and batter-dipped chicken or fish.
(4)Fasting is the fastest diet
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Most important, before getting caught up in dietary myths, let good sense shape your eating habits. Your body will thank you for it.
It cannot be inferred from the first paragraph that______.
[A] the information about dieting is always contradictory
[B] there are too many weight-loss strategies to choose from
[C] dieting is always troublesome to most people
[D] people should not believe the ideas of dieting
第7题
Which of following is an important input to scope verification?
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答案：A。
求解析。
第8题
Take the【C4】______example of a hairdryer.
If you are buying a hairdryer, you might【C5】______that you are making the【C6】______buy if you choose one【C7】______look you like and which is also the cheapest【C8】______price. But when you get it home you may find that it【C9】______twice as long as a more expensive【C10】______to dry your hair. The cost of the electricity plus the cost of your time could well【C11】______your hairdryer the most expensive one of all.
So what principles should you【C12】______when you go out shopping?
If you【C13】______your home, your ear or any valuable【C14】______in excellent condition, you'll be saving money in the long【C15】______
Before you buy a new【C16】______, talk to someone who owns one. If you can, use it or borrow it to check if it suits your particular【C17】______
Before you buy an expensive【C18】______, or a service, do cheek the price and【C19】______is on offer. If possible, choose【C20】______three items or three estimates.
【C1】
A．form
B．fashion
C．way
D．method
第9题
Take the【C4】______example of a hairdryer. If you are buying a hairdryer, you might【C5】______that you are making the【C6】______buy if you choose one【C7】______look you like and which is also the cheapest【C8】______price. But when you get it home you may find that it【C9】______twice as long as a more expensive【C10】______to dry your hair. The cost of the electricity plus the cost of your time could well【C11】______your hairdryer the most expensive one of all.
So what principles should you【C12】______when you go out shopping?
If you【C13】______your home, your car or any valuable【C14】______in excellent condition, you'll be saving money in the long【C15】______.
Before you buy a new【C16】______, talk to someone who owns one. If you can, use it or borrow it to check if it suits your particular【C17】______.
Before you buy an expensive【C18】______, or a service, do check the price and【C19】______is on offer. If possible, choose【C20】______three items or three estimates.
【C1】
A．form
B．fashion
C．way
D．method
第10题
Take the【C4】______example of a hairdryer. If you are buying a hairdryer, you might【C5】______that you are making the【C6】______buy if you choose one【C7】______look you like and which is also the cheapest【C8】______price. But when you get it home you may find that it【C9】______twice as long as a more expensive【C10】______to dry your hair. The cost of the electricity plus the cost of your time could well【C11】______your hairdryer the most expensive one of all.
So what principles should you【C12】______when you go out shopping?
If you【C13】______your home, your car or any valuable【C14】______in excellent condition, you'll be saving money in the long【C15】______
Before you buy a new【C16】______, talk to someone who owns one. If you can, use it or borrow it to check it suits your particular【C17】______
Before you buy an expensive【C18】______, or a service, do check the price and【C19】______is on offer. If possible, choose【C20】______three items or three estimates.
【C1】
A．form
B．fashion
C．way
D．method
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