Grandma was ill.That was why she __ upst_爱下问搜题

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问题选择题

Grandma was ill. That was why she __ upstairs last night. [ ]

A. was helped

B. was helping

C. helped

答案

答案：A

单项选择题

全部工作完毕后，工作负责人应向（）交代所修项目状况、试验结果、发现的问题和未处理的问题等。

A.检修人员

B.运行人员

C.工作许可人

D.工作人员

单项选择题

下列哪项不是异体骨移植的主要用途是（）

A.骨折治疗

B.充填大块骨缺损

C.骨肿瘤植骨

D.人工关节翻修术时充填骨缺损