普通混凝土路面横向缩缝宜（）布置。 A．等间距 B．间隔 C．分层 D．分段

关于颅骨损伤，下列哪项是错误的：（）

A．有颅骨骨折存在严重的脑损伤

B．没有颅骨骨折，可能存在严重的脑损伤

C．有颅骨骨折，说明伤者脑损伤较重

D．颅骨骨折中，以线形骨折发生率最高

E．颅骨骨折，可由间接暴力所致

根据句意用所给动词的适当形式填空。

小题1:---When _______________he_______________ (move) here?

---Sorry, I don’t know. I have just seen him here.

小题2: Now Wuxi _______________ (become) a modern city, but the price of the houses here isn’t so high.

小题3: Lei Feng always did what he could _______________ (help) people in need.

小题4:There _______________ (be) great changes in Wuxi in the past few years.

小题5:There used_______________  (be) a small clean river near our school.

小题6:Since he fell off the bicycle, John ___________ (lie) in bed for nearly a month.

小题7:The woman sat under the tree, _______________( watch) her daughter dancing.

小题8:It is the second time that the two boys_______________ (forget) to return the book to the library on time.

小题9:They will come to see him if it ____________ (not be) rainy tomorrow.

小题10:This cake smelt so nice that I couldn’t stop  ____________ (test) it.

中国对外直接投资额成为世界（）。

A.第一

B.第二

C.第三

D.第四

某项任务甲4天可完成，乙5天可完成，而丙需6天完成，今甲、乙、丙3人依次一日一轮换工作，则完成此任务需（）天。

A.5

B.

C.

D.

E.A、B、C、D都不正确

滚动轴承滚子上麻点的产生是材质疲劳正常剥离。（）