女性，18岁。心悸、多汗，多食、消瘦4月余。体检：甲状腺Ⅱ度肿大，右上极可闻及血管杂

用所给词的适当形式填空。

1. The children are singing and dancing ____(happy) on the playground.

2. We enjoyed _________( oneself) in the park last Sunday.

3. The workers ________ ( produce) a new kind of machine.

4. But I _______ ( real) cannot go to town with you tomorrow.

5. I'm ______( especial) busy this morning. What about this afternoon?

6. Throw it away. It's quite _________( worth) .

7. Could you give me some _________( advice) on this problem?

下列植物中只能用种子繁殖的是 [ ]

A．水稻

B．梨树

C．月季

D．葡萄

河豚毒素含量最多的器官是（ ）。

A．鱼肉和血液

B．鱼头和鱼尾

C．肝脏和卵巢

D．鱼鳃和眼睛

发现配电房有冒烟、短路等异常情况或发生火警等重大事故时，运行人员应当立即进行全部或部分负荷停电操作，根据情况立即合上低压配电柜上电源开关。