对开发区水环境容量与废水排放总量，如预测的各项总量值均低于基于技术水平约束下的总量控

下列属于先天性行为的是（　　）

A．家中饲养的小猫到固定的地方大小便

B．青蛙捕食害虫

C．蚯蚓走迷宫

D．兀鹫会用石块将鸵鸟蛋砸碎来享受美味

铜的元素符号为（）

A.Fe

B.Cu

C.Au

D.Zn

阅读理解。

     We have two daughters: Kristen is seven years old and Kelly is four. Last Sunday evening, we invited

some people home for dinner. I dressed them nicely for the party, and told them that their job was to join

Mommy in answering the door when the bell rang. Mommy would introduce them to the guests, and then

they would take the guests' coats upstairs and put them on the bed in the second bedroom.

     The guests arrived. I introduced my two daughters to each of them. The adults were nice and kind and

said how lucky we were to have such good kids.

     Each of the guests made a particular fuss over Kelly, the younger one, admiring her dress, her hair and

her smile. They said she was a remarkable girl to be carrying coats upstairs at her age.

     I thought to myself that we adults usually make a big "to do" over the younger one because she's the one

who seems more easily hurt. We do it with the best of intentions.

     But we seldom think of how it might affect the other child. I was a little worried that Kristen would feel

she was being outshined. I was about to serve dinner when I realized that she had been missing for twenty

minutes. I ran upstairs and found her in the bedroom, crying.

     I said, "What are you doing, my dear?"

     She turned to me with a sad expression and said,"Mommy, why don't people like me the way they like

my sister? Is it because I 'm not pretty? Is that why they don't say nice things about me as much?"

     I tried to explain to her, kissing and hugging her to make her feel better.

     Now, whenever I visit a friend's home, I make it a point to speak to the elder child first.

1. The underlined expression ' make a big "to do" over' (paragraph 4) means ______.

A. show much concern about

B. have a special effect on

C. list jobs to be done for

D. do good things for

2. The guests praised Kelly for carrying coats upstairs because of her ______.

A. beautiful hair

B. pretty clothes

C. lovely smile

D. young age

3. Kristen felt sad and cried because ______.

A. the guest gave her more coats to carry

B. she didn't look as pretty as Kelly

C. the guests praised her sister more than her

D. her mother didn't introduce her to the guests

4. We can conclude from the passage that ______.

A. parents should pay more attention to the elder children

B. the younger children are usually more easily hurt

C. people usually like the younger children more

D. adults should treat children equally

“保证互助”也属于风险管理方式。该方式属于（）的方法。

A、A

B、B

C、C

D、D

驾驶机动车遇有前方交叉路口交通阻塞时怎么办？

A．依次停在路口外等候

B．可借对向车道通过

C．从前车两侧穿插通过

D．进入路口内等候