周人灭商以后，蓄意的破坏了商人的陵墓。

饱和黏土的抗剪强度指标（）。

A.与排水条件有关

B.与排水条件无关

C.与试验时的剪切速率无关

D.与土中孔隙水压力的变化无关

Questions 24-30

·Look at the questions for this part.
·You will hear a passage about "Health and Fitness ". You will listen to it twice.
·For Questions 24-30, indicate which of the alternatives A, B, or C is the most appropriate response.
·Mark one letter A, B, or C on the Answer Sheet.

Which of the following is NOT a reason why Americans are consuming more and more fast food at restaurants

A．Fast food is often the cheapest.

B．Fast food is believed to be nutritious.

C．Americans simply like fast foo

下列在急性心肌梗塞的治疗中哪些是正确的：（）

A.胸痛时给予盐酸吗啡

B.频发性室性期前收缩时静脉滴注或注射利多卡因

C.烦躁时适当给予镇静剂

D.下壁梗塞合并方式传导阻滞时，给予洋地黄

E.右室梗塞心输出量和血压正常时应常规使用利尿剂和血管扩张剂

IP地址中，前3个字节为( )。

A．主机号

B．主机名

C．网络名称

D．网络号

低压网络两相短路电流I"_k2与三相短路电流I"_k3的关系在发电机出口处短路时，公式是（）。

A．I_k2=0.866I_k3

B．I"_k2=0.866I"_k3

C．Z_s=×10³mΩ

D．I_k2=1.5I_k3