David Hu and his colleagues analyzed the frozen ant rafts with______.A.a small robotB.a vi
David Hu and his colleagues analyzed the frozen ant rafts with______.
A.a small robot
B.a video camera
C.advanced materials
D.a CT scanner
David Hu and his colleagues analyzed the frozen ant rafts with______.
A.a small robot
B.a video camera
C.advanced materials
D.a CT scanner
第1题
Fire ants interlock their legs together to______.
A.make sure everyone is not lost
B.look like a floating raft
C.move to any destination together
D.make themselves float on water
第2题
When shopping online, make sure______.
A.you have installed the secured browser in the computer
B.you can see the secure lock displayed by your browser
C.you are alone when making the online purchase
D.you have entered the correct credit card number
第3题
A PIN is necessary for______.
A.the activation of your credit card
B.online shopping with a credit card
C.your using credit card in shops
D.withdrawing cash through a credit card
第4题
How should people deal with emails asking for their credit card information?
A.They should call the banks to confirm.
B.They should delete them right away.
C.They should check who sent out the emails.
D.They should respond to the emails with care.
第5题
The first thing to do after receiving a credit card is to______.
A.sign the back of it
B.activate the card
C.call the bank
D.choose a password
第6题
Which of the following statements is INCORRECT about Queen Elizabeth National Park?
A.The park is well-known for viewing hippos.
B.The park has too many hippos now.
C.The park is suffering from ecological problems caused by hippos.
D.The park is planning to kill some hippos.
第7题
What problem do hippos cause in me park?
A.A lot of original animals died.
B.Too many people come to visit the park.
C.The balance of nature had been upset.
D.Birds disappear because of polluted water.
第8题
How many hippos are kept in Queen Elizabeth National Park now?
A.About 14,000.
B.No more than 14,000.
C.No more than 4,000.
D.About 4,000.
第9题
In order to improve the state of me undernourished population,______.
A.people should increase the areas of grazing land
B.experts should persuade people to give up meir traditional diets
C.local people should grow more crops with vegetable proteins
D.local people should use advanced techniques in crop growing
第10题
Mixtures of vegetable proteins can______.
A.provide proteins as meat does
B.produce more proteins than meat can
C.change me style. human body absorbs nutrients
D.easily be absorbed by human body
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