队列研究中调查对象应选择（）。 A.在有该病者中，选择有、无某种暴露因素的两个组 B

骨骼支撑着身体并支持运动．人体的骨骼是由多少块骨连接而成的（　　）

A．180块

B．206块

C．500多块

D．600块

句型转换用适当的词填空（每空限一词，共10空；每小空1分，满分10分）

小题1:I’d like to live next to a restaurant. (对划线部分提问) 

___________ _________ you like to live?

小题2:There is a community centre in my neighborhood. (对划线部分提问)

____________ ____________ in your neighborhood?

小题3:Some college students are ready to help us with our homework. (改成一般疑问句)

____________ any college students __________to help you with your homework?

小题4:The man is in a white shirt. The man is my uncle.(合并成一句)

The man ____________ a white shirt ___________ my uncle.

小题5:Lily usually has sports on Monday afternoon.(改为否定句)

Lily ___________ ____________ sports on Monday afternoon.

易发生胃排空障碍的是（）

A.毕Ⅱ式胃大部切除术

B.迷走神经干切断

C.选择性胃迷走神经切断术

D.毕Ⅰ式胃大部切除术

E.高选择性迷走神经切断术

严禁对故障电缆强行送电。（）