5G个人套餐每月可领取会员权益，那298档可以领取几个？（）

A．服务交付经济

B．产品特性先进

C．资源扩容灵活

D．安全保障可靠

A．2n2

B．2n2 +1

C．2n2020/2/1

D．2n2 +2

A．营业部主任

B．业务主管

C．高级管理层

D．会计运营部

此题为判断题(对，错)。

A．颈外静脉

B．颞浅静脉

C．大隐静脉

D．手背静脉网

E．肘正中静脉

A．室温低于10℃时

B．室温低于15℃时

C．室温低于5℃时

D．室温低于20℃时

You probably have a long mental list of moments and facts you wish you could remember—but actually you cannot. The good news,【B1】______, is that while such memories may be currently【B2】______, they are not entirely gone, and could theoretically be【B3】______, according to a new brain research. In the study, biologist Jeffrey Johnson【B4】______16 college participants through an FMRI machine (which【B5】______nervous activity via blood flow)to compare brain patterns【B6】______memory formation and recall. First, he showed the students various common words and had them【B7】______a few tasks: say the word backwards in your head,【B8】______its uses, and picture how an artist would【B9】______it. Then, 20 minutes later, after the students re-entered the FMRI machine, Johnson showed them the list of words and asked them to recall【B10】______they could from before. Finally, he compared brain activity from both【B11】______and what he found will surprise you. Using【B12】______is called "pattern analysis" , its possible to【B13】______a unique pattern of brain activity to every individual thing we do. This means that when a participant says the word "apple" backwards the【B14】______pattern of brain activity is different from when he pictures the fruit.【B15】______interestingly, there is close similarity between the pattern that emerges when we【B16】______an activity and when we later recall it. The stronger our memory, the【B17】______the pattern, but as Johnson found, even at a moment【B18】______we cannot remember anything, our nerve cells still fire in a way that【B19】______the activity of when we formed the memory. This【B20】______that sometime in the future we may be able to retrieve the memories we thought wed lost forever.

【B1】

A．although

B．rather

C．though

D．therefore

A．受电弓

B．配电系统

C．接触网

D．牵引控制器

A．未轧差

B．未清算资金

C．未贷记接收人账户

D．以上都不对

A．耳塞

B．口罩

C．工鞋

D．手套