在各个环节的方案比选中，（）是技术政策、发展战略、规划的制定和项目评价的重要内容和组

钙拮抗药的I临床应用包括

A．心律失常

B．心绞痛

C．高血压

D．脑血管疾病

E．肥厚性心肌病

公安机关的性质、任务决定了公安队伍必须保持政治坚定，站稳政治立场，把握正确方向。因此，始终把( )放在公安队伍建设的首位。 　　

A．从严治警．依法治警

B．科教强警

C．从优待警

D．政治建警

中央机构正式实行三省六部制开始于（）。

Bats are the only mammals(哺乳动物) which can fly properly. Other flying mammals have wings of thin skin which cover their sides between their front and back legs. They can only fly from tree to tree, but they cannot change direction when they want to.

All bats fly at night and most of them hunt for flying insects(昆虫), such as bees. The common bat finds its food by making a constant noise that the human ear cannot hear. The bat listens for echoes(回声) of the noise as it bounces(反射) off the insects showing the bat their position.

The Fruit bat feeds on many different kinds of fruit. It does not use echoes but instead has very large, special eyes to see even in low light. The largest Fruit bat has a wing length of 0.75 meters. The Vampire bat drinks the blood of large mammals, and a few bats catch fish, birds and even other bats.

小题1: Some flying mammals are not real flyers because _____.

A．they do not have wings

B．their wings are too thin

C．they have skin between their legs

D．they cannot turn around in the air小题2: When common bats hunt for food they _____.

A．use echoes to kill the insects

B．make a noise to draw insects to them

C．produce a sound and listen to the echoes

D．listen noise made by the insects小题3: Unlike other bats, the Fruit bat _____.

A．can see very well

B．eats fruit and fish

C．has very long wings

D．has excellent hearings小题4:The word "it" in the second paragraph refers to _____.

A．the bat

B．the echo

C．the noise

D．the insect

某个地方，把死猪肉做成鱼饲料，让你写个调查报告。（1）如何开展计划？（2）如何确定调查对象？（3）在该工作中如遇到的困难怎么办？