检漏继电器接入电网时，直流电源便和电网绝缘电阻构成（）电路。A、交流 B、直流 C、

“抛出的球会下落”，这个事件是（    ）事件（填“必然”或“不可能”或“随机”）

补全对话。

M: Hi, Linda. I'm having a party this Saturday. I've just moved into a new flat. 1_____?

W: I'd love to. Thank you very much. 2_____?

M: We're starting at about five thirty.

W: 3_____?

M: Oh, here's my new address.

W: Thanks. Church Street, Randwick. By the way, 4_____?

M: Bus No.3.

W: OK. I won't forget, and I'll be there on time.

M: 5_____.

W: Bye.

各国的行政法一般都有一部完整统一的法典。( )

Bell现象常见于如下哪种疾病（）

A.特发性面神经麻痹

B.急性脊髓炎

C.病毒性脑炎

D.三叉神经痛

E.周期性瘫痪

叶天士说：“若斑出热不解者，胃津亡也”，治以：（）.

A.辛凉

B.甘寒

C.甘寒或咸寒

D.咸寒