通过教育使人们对生活的意义的理解，对人与人、人与自然、人与社会关系理解的提升，对人们

小题1:The       (大气层) of the earth can hold back some of the harmful rays of the sun.

小题2:The boy suddenly lost his b_______________ and fell from the tall tree.

小题3:She is fat. She has been taking exercise to lose w____________ from day to day.

小题4:You hurt his feeling. You should a_________________ to him for what you said.

小题5:The village is          (环绕) on all sides by hills.

小题6:You need to accept people who have different _____________ ( 信仰) from ours.

小题7:We should set a proper amount to be read in a  _______________ ( 有限的) time.

小题8:Qingdao        (海港) is one of the busiest ones in China..

小题9:We asked his ____________________( 允许 ) to use the car.

小题10:It is _________________ ( 显然的 ) that you are telling a lie.

下列叙述错误的是[ ]

A．唾液中的淀粉酶是一种生物催化剂

B．人体所需的能量全部由糖类提供

C．不能用甲醛溶液作食用水产品的防腐剂

D．蔬菜、水果、鱼肝油等富含维生素

新生儿呼吸窘迫综合征的主要体征是（）。

A.抽搐

B.持续低体温

C.肝脾大

D.不吃、不哭，反应低下

E.出生后进行性呼吸困难、发绀

机电一体化具有（）两方面的内容。

A、电子与机械系统

B、技术与产品

C、电子与信息

D、信息与机械系统

回流比