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【单选题】
引起原发性非典型肺炎的病原体是A.
肺炎支原体
B.
肺炎衣原体
C.
立克次体
D.
肺炎链球菌
E.
病毒
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【单选题】--- Could you tell me ? --- His home is quite far away from the office, I think.
A.
when did he got up
B.
why he bought the car
C.
where he works
D.
how does he like his job
【单选题】The functional groups of pyrimidines and purines are ring nitrogens, carbonyl groups, and exocyclic amino groups. _____________________ involving the amino and carbonyl groups are the most important m...
A.
hydrogen bonds
B.
van der Vaal interactions
C.
hydrophobic interactions
D.
electrostatic attractions
【判断题】Groups are important, because they tend to have more power than just one person, and groups’ decisions usually carry great weight. It makes us more cooperative, more reasonbale, and more intelligent. ...
A.
正确
B.
错误
【单选题】The day was like any other day in his life, Tom walked past the shop on the street comer. He stopped to look at the front row of shoes, and he felt happy to see that the pair of shoes he wanted very m...
A.
on foot
B.
by bus
C.
by bike
D.
in a car
【简答题】Groups are important, because they tend to have more power than just one person, and groups’ decisions usually carry great weight. It makes us more ( ), more( ), and more ( ). Working together d...
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