由于地质构造复杂而难以划出正划的采区划分为（）类。A.一 B.二 C.三 D.四

解放战争的三大战役中，广大农民群众积极参与、支援前线，主要是由于[ ]

A．国民党发动内战不得人心

B．解放战争具有正义性

C．解放区进行了土地改革

D．中共代表农民阶级利益

治疗痢疾之休息痢，应首选（）

A.不换金正气散

B.芍药汤

C.驻车丸

D.桃花汤

E.连理汤

阅读理解

     Algae(水藻) are very simple plants. They grow in fresh water or salty water. Seaweed is algae that

grow in salty water. Seaweed is red or brown in color. The Japanese people use these plants from the

sea in many ways. From it, they make a food called Kombu. Kombu is seaweed that has been dried,

cooked and pressed together. Then it is dried again and cut into long pieces. The Japanese eat a lot of

Kombu and like it very much.  

     Japanese farmers often use seaweed as fertilizer. It makes their plants grow better. Many farmers

also find seaweed makes a fine food for their animals.  

     From seaweed the Japanese also get iodine(碘), which they sell to other countries. Iodine is used

in many ways all over the world. It is used in making medicine. It is added to the salt we use at the table.

Scientists even use one form of iodine to “ seed clouds” when they want rain to fall.

1. Kombu is a kind of ____ according to the text.   

A. plant        

B. medicine          

C. food       

D. fertilizer

2. In the last sentence of the text, “seed clouds” means ____.

A.clouds spreading like seeds

B.the seeds like clouds

C.to make rain fall with human power

D.dropping seeds by clouds

3. The main idea of the story is that ____.

A.The Japanese eat seaweed when they want rain to fall.

B.Kombu is made into medicine for farmers.

C.The Japanese use seaweed in many ways.

D.The Japanese eat a lot of Kombu.

患者，女，65岁。心悸、胸闷、水肿十余年，近日病情加重，全身冷汗淋漓，神志时清时昏，面色苍白，手足冰凉，舌质淡胖，脉细微无力，宜急用附子配伍（）

A.白术

B.党参

C.人参

D.黄芪

E.甘草

钢筋的规定非比例伸长应力值应不小于公称抗拉强度的80%。( )