A. that B. how C. where D. whether

A: ()is David from？ B:I think he's an American. But I'm not sure.

A. Where

B. What

C. How

A. Packets entering F0/0 will be compared based on the PBR route map.

B. Packets exiting F0/0 will be compared based on the PBR route map.

C. IOS ignores the PBR forwarding directions wh en the packet matches a route map deny clause.

D. IOS ignores the PBR forwarding directions when the packet matches a route map permit clause.

A.A. who

B.B. whom

C.C. whomever

D.D. whoever

wh/2

A.分配系数

B.容量因子

C.保留时间

D.峰宽

E.半高峰宽

卵巢肿瘤组织学分类（WH0，1973年）哪种是错误的（）。

A．上皮性肿瘤

B．性索间质肿瘤

C．生殖细胞肿瘤

D．卵巢转移性肿瘤

E．交界类肿瘤

一____________？

一I'm a journalist.

A. What's your name

B. What's your job

C. Where are you from

- Perhaps you don't believe it. I just had a close call. ()

A. What happened？

B. Who called you？

C. Was it from your close friend？

A．峰面积

B．峰高

C．保留时间

D．峰宽

E．半高峰宽

色谱柱理论塔板计算公式n=5.54(tR/Wh/2)2中，各符号的含义是

tRE．

You can meet people()can possibly help you find a paid job later on.

A. that

B. who

C. which

A.柏喹

B.氯喹

C.青蒿素

D.奎宁

tR

A.分配系数

B．容量因子

C．保留时间

D．峰宽

E．半高峰宽

色谱柱理论板数的计算公式n=5.54(tR/Wh/2)2+中，以下符号代表的是