若有定义语句：int k[2][3],*pk[3];，则以下语句中正确的是_____

He stood still in front of the shop window ______ he were thinking something.[ ]

A. as though

B. even though

C. as long as

D. although

我国的兽药标准有国家标准，专业标准和地方标准三类。

储蓄事后监督的主要内容？

酮症酸中毒病人，口腔可出现（）

A.大蒜味

B.氨臭味

C.烂苹果味

D.酸臭味

E.腐臭味