按障碍的查修段落区分一般分为（）障碍和（）障碍。

阅读理解。

     Mary likes sports. Her school sports meet will be held on May 4th. She entered for the high jump

and long jump, and the other girls in her class are sure she will win both. But ten days before the school

sports meet, when Mary climbed a hill, she hurt her left leg.

     She worried about the school sports meet. Would her leg be all right by May 4th? Four of her friends

took her to the hospital. The doctor said it was not serious. Mary's left leg would be much better by the

end of April, and on May 4th she would be able to run and jump at the school sports meet.

1. Mary will enter _______.

A. the high jump

B. the long jump

C. the hill climbing

D. A and B

2. Mary hurt her left leg on _______.

A. May 4th

B. April 24th

C. April 3rd

D. May 14th

3. When Mary hurt her left leg, she worried about _______.

A. her walking

B. her going to hospital

C. her going to school

D. the school sports meet

4. The doctor said she would be better soon, because _______.

A. Mary was not badly hurt

B. four friends took her to the hospital on time

C. Mary was strong enough

D. Mary had a lot of time before the school sports meet

5. Which is TRUE?

A. Mary won't enter for the school sports meet.

B. Mary won the high jump and long jump at last.

C. Mary will enter for the school sports meet.

D. Mary couldn't watch the school sports meet.

对判断肝硬化患者愈后意义不大的指标是（）。

A.腹水

B.白蛋白

C.血清电解质

D.凝血酶原时间

E.肝性脑病

研究表明：胚芽鞘的向光性与生长素的横向运输有关。研究人员推测生长素的横向运输可能发生在胚芽鞘尖端，也可能发生在胚芽鞘尖端下面一段(弯曲生长部位)，还可能在两个部位都可以发生。为了探究生长素的横向运输发生的部位，有人进行了以下实验：

实验材料：直立生长状态相似的燕麦胚芽鞘若干，不透水的蜡纸(可插入胚芽鞘)，台灯，一侧开孔的不透光纸盒等。

实验步骤：

(1)将生长状态相同的燕麦胚芽鞘分成数量相等的四组，标号为A、B、C、D。

(2)B组将不透水的蜡纸插入胚芽鞘尖端；A组；C组；D组不做处理，作为对照。

(3)将A、B、C、D四组材料置于不透光的纸盒中，给予单侧光照(四组材料均可感受相同的单侧光照)，其它条件相同且适宜，培养一段时间后观察结果。根据相关信息回答：

①．请参照下图并结合预测的可能实验结果，补充完成实验步骤(2)中A、C组的操作,画在下图中

②．预测可能的实验结果并得出相应的结论

a：若A组不向光弯曲生长，B、C、D三组都向光弯曲生长，则说明______________。

b：若_________________________，则说明生长素横向运输部位是在尖端下面一段。

c：_____________________________________________________________________。

在坚决整治腐败的同时，应更加注重（），更加注重预防，更加注重制度建设。

A、综合治理

B、标本兼治

C、惩处

D、治本

液力偶合器的缺点之一是，电动机的传动效率降低了（）。

A.2%—3%

B.3%—4%

C.4%—5%