防撕裂保护的缺点是当胶带发生纵向撕裂较短时，不能起作用。

I'm terrified _____ the dark. I go to sleep _____ my bedroom light _____. [ ]

A. of, on, on

B. of, with, on

C. with, with, on

D. with, on, on

车削合金结构钢工件时，车刀倒棱的宽度应小于进给量。( )

慢性骨髓炎迁延不愈、反复发作的最主要原因是（）。

A.窦道的形成

B.死骨的残留

C.瘢痕组织增生

D.机体抵抗力低

E.细菌毒力强

惰性粉适用于各种未入粮的空仓杀虫处理，用粉量为（）g/m³。

A.0.5～0.75

B.0.10～0.25

C.0.75～1.0

D.0.25～0.5

The engineers are going through with their highway project, （） the expenses have risen.

A. even though

B. just because

C. now that

D. as though