蝗虫在生长过程中必须蜕皮的原因是 [ ] A．外骨骼不能生长 B．外骨骼损坏，需

阅读下面的短文，并根据短文后的要求答题。

Tom is a five-year-old boy. He likes chocolates (巧克力) very much. (89)But his mother doesn’t think they are good for his health. So she doesn’t usually buy them for Tom. Tom has a nice grandfather. The old man doesn’t live with them. He loves Tom very much. He usually comes to see Tom on weekends. And he often buys some chocolates when he comes. Then Tom’s mother lets him eat it, because she wants to make her father happy.

Tom’s birthday is on Saturday. On Friday evening, Tom says to his mother, “Oh, I’m very happy today.”

“Why?” asks his mother.

“Because tomorrow is my birthday, and I can get chocolates,” says Tom, “Please God, (90)give me a big box of chocolates for my birthday.”

“Ha! God can’t hear you. Don’t shout (喊)!” says Tom’s mother.

“I know,” says the boy with a smile, “but my grandfather is in the next room, and he can.”

任务1：根据短文内容回答下列问题。

1. When does Tom’s grandfather usually see Tom?

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2. Why is Tom happy on Friday evening?

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3. Can Tom get a box of chocolates on his birthday?

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任务2：将文中划线的句子翻译成汉语。

4.                                                                 

5.                                                                 

骨转移瘤可发生于全身任何骨骼，最为常见的是（）。

A.脊柱、骨盆、肋骨和胸骨

B.肱骨

C.股骨

D.膝关节

E.颅骨

门脉高压的特异性表现是

A．腹水
B．脾肿大
C．脾功能亢进
D．侧支循环开放
E．肝掌，蜘蛛痣

下列几种磺胺药中，“适于治疗非特异性结肠炎，长期服用可防止发作”属于（）

A.磺胺嘧啶

B.磺胺异唑

C.柳氮磺胺吡啶

D.磺胺嘧啶银

E.磺胺甲氧嘧啶

心力衰竭诱发因素中一般最常见的为

A．有效循环血容量增加
B．心律失常
C．过度劳累或情绪激动
D．严重贫血或大出血
E．感染