He wanted to make sure __________.[ ] A._爱下问搜题

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问题选择题

He wanted to make sure __________. [ ]

A. how we went there by bus

B. where did we go

C. what did we go there

D. when we went there

答案

答案：D

单项选择题

小肠肠壁组织结构由内向外依次为（）

A.黏膜层、黏膜下层、肌层、浆膜层

B.黏膜层、黏膜下层、黏膜肌层、肌层、浆膜层

C.黏膜层、黏膜肌层、黏膜下层、固有肌层、浆膜层

D.黏膜层、黏膜肌层、浆膜层

E.黏膜层、肌层、浆膜层

单项选择题

为了降低铁心中的（），叠片间要互相绝缘。

A、涡流损耗

B、空载损耗

C、短路损耗

D、无功损耗