靠装在主轴上带叶片的叶轮高速旋转时叶片搅动液体，把能量传递给液体，使其产生压力和速度

下列各组词语中，字形完全正确的一项是(　　)

A．厮打榫头孽根祸胎瘦消不堪

B．寒暄崔嵬做客他乡懵懂顽童

C．宵柝窈陷蜂拥而来金碧辉煌

D．桌帏敕造恬然自安伶牙利齿

初次申领的机动车驾驶证的有效期为多少年？

A．3年

B．5年

C．6年

D．12年

鸡西市某课外活动小组利用双休日到废品回收站进行社会实践活动．结合下列图片，请你从金属资源等方面提出至少三条合理化建议．

My six-year-old granddaughter, Caitlyn, and I stopped at a Tim Horton’s shop for a blueberry cake. As we were going out of the door, a young teenage boy was coming in.

This young man had no hair on sides of his head with a set of blue spiked（竖起的）hair on top of it. One of his nostrils(鼻孔) was pierced （扎、穿）, and a ring ran through the hole and a chain went across his face and was attached to a ring he was wearing in his ear. He held a skateboard under one arm and a basketball under the other.

Caitlyn, who was walking ahead of me, stopped at once when she saw the teenager, I thought he’d scared her and she’d frozen on the spot.

I was wrong.

My granddaughter backed up against the door and opened it as wide as it would go. Now I was face to face with the young man. I stepped aside and let him pass. His response was a polite “Thank you very much”.

On our way to the car, I praised Caitlyn for her manners in holding open the door for the young man. She didn’t seem to be troubled by his appearance, but I wanted to make sure. If a grandmother’s talk about freedom of self-expression and allowing people their differences was in order, I wanted to be ready.

As it turned out, the person who needed the talk was me.

The only thing Caitlyn noticed about the teenager was the fact that his arms were full. “He would have a hard time to open the door. ”

I saw the partially shaved head, the set of spiked hair, the piercing and the chain. She saw a person carrying something under each arm and heading toward a closed door.

In the future, I hope to get down on her level and raise my sights.

小题1:What did the author think of the young man?

A．Polite.

B．Uncommon.

C．Frightening.

D．Funny.小题2: Caitlyn helped the young man because______ .

A．she was scared

B．she didn’t notice his look

C．she wanted to avoid him

D．it would be difficult for him to open the door小题3: The underlined sentence suggests that_______ .

A．the author was ashamed of herself

B．the author didn’t know how to give a talk on freedom

C．a talk on freedom was useless for the granddaughter

D．people should have more freedom to express themselves小题4: The author intends to tell us that_______ .

A．we shouldn’t judge a person by his look

B．we should allow people more freedom to dress differently

C．we should be more helpful and tolerant(宽容的)to people

D．we shouldn’t be too particular about people in life

碳酸氢钠与什么药合用有配伍禁忌______

A．含有大量鞣质的中药
B．含有大量黄酮成分的中药
C．含有有机酸的中药及其制剂
D．含麻黄的中成药
E．含朱砂成分的中药制剂