如何拆除推力冷却器？

---Why didn’t you tell me the truth about his illness?

---___________, I knew nothing about it at that time.

A．Tell you the truth

B．Telling you the truth

C．To be honest

D．Being honest\

总体参数

某地1990年底有男性人口13697600人，男性人口中因心血管疾病死亡18311人，其中因冠心病死亡654人，计算该地男性人口冠心病死亡强度()

A．654/13697600×100%

B．654/13697600×1000‰

C．654/13697600×100000/10万

D．18311/13697600×1000‰

E．以上都不正确

The reason why the traffic was stopped was the bridge（）was broken.

A. how

B. that

C. because

D. for

以下哪个是铝合金吊顶龙骨的特点（）

A.易生锈

B.质量重

C.易腐蚀

D.易安装