"肝血管瘤"CT诊断三条标准为（）。 A.平扫，低密度病灶 B.增强早期，边缘明显强

用所给词的正确形式填空。

1. I go home _____(one) a week. 

2. There are the _____(key) to these doors.

3. I would like to make friends with an _____(interview).

4. I _____(do) some reading tomorrow.

5. Tom usually _____(get) up at 8:00 on Sunday.

6. Where _____(do) Maria go on vacation?

房地产中介机构受委托代理销售商品房时，不得收取佣金以外的其他费用。()

具有二氢叶酸还原酶抑制作用的药物是( )

A．甲氨蝶呤
B．巯嘌呤
C．卡莫氟
D．阿糖胞苷
E．卡莫司汀

居民电费违约金是怎样收取的？

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