预防急性乳腺炎的具体方法是（） A.产前纠正 * * 内陷 B.正确的哺乳，避免 * * 破损

根据句意及所给首字母，填入一个合适的单词。（共10小题，每小题0.5分，满分5分）

小题1:At last he was p____________ to take his brother’s advice.

小题2:A stay in the country will be b______________ to his health.

小题3:They decided to buy some new e_____________ for the lab.

小题4:A customer was talking with the manager, with their hands c_________.

小题5:You don’t seem very e______________ about the suggestion.

小题6:They are looking forward to a___________ that old play to their needs.

小题7:She is not generous at all. She is always m_________ with her money.

小题8:D___________ to his research, he always forgets to have dinner.

小题9:The lack of rain could s__________ disaster for farmers.

小题10:Speech and writing are man’s most important methods of c____________.

化脓菌感染（）

A.黄色脓性痰

B.黄绿色或翠绿色痰

C.微黄奶酪样痰

D.痰粘稠牵拉成丝

E.水样痰，内含粉皮样物

含3，17β-二羟基雌甾结构的是（）。

A.A

B.B

C.C

D.D

E.E

C200主控板可支持vLAN数量最多是（）.（包括vLAN1）

A.4094

B.4096

C.4095

D.4093

如果在齿轮传动中，其中有一个齿轮和它的（）绕另一个（）旋转，则这轮系就叫周转轮系。