一30岁孕妇，妊娠8个月，主诉无痛性 * * 流血5天。超声首先应排除的情况是（） A.异

HSRP备份组成的虚拟MAC地址随着生产厂家的不同而不同，因此可以更改以下哪一条命令用来实现虚拟MAC地址以实现与其它厂家路由器的互连______

A．standby bia xx-xx-xx-xx-xx
B．standby use-bia xx-xx-xx-xx-xx
C．standby ovmac xx-xx-xx-xx-xx
D．standby use-ovmac xx-xx-xx-xx-xx

One day Jack’s wife was cleaning out a closet(壁橱).

"Look at all these umbrellas," she said to Jack. "There are eight and they are all broken."

"I’ll take them to the umbrella shop and have them mended," Jack said.

Jack took the eight umbrellas to the shop and left them there. "They’ll be ready tomorrow," the shopkeeper said.

That evening Jack went home from the office by bus as usual. He sat next to an old woman. She had an umbrella on the floor near her.

When the bus reached his stop, he picked up her umbrella and stood up. "Hey!" the woman said. "That’s my umbrella !"

"I’m sorry," Jack said, and at the same time he gave the umbrella to her. "I wasn’t thinking. Please excuse me."

The next day he got back the umbrellas from the umbrella shop and got on the bus.

As he sat down, a voice behind him said, "You certainly have a successful day!"

He turned around and saw the woman whose umbrella had almost been taken by him the day before.

（）had the broken umbrellas mended in the umbrella shop.

A．Jack’s wife

B．Jack

C．The shopkeeper

D．The old woman

下面哪个词语不能用来形容优秀班集体[ ]

A、团结奋斗

B、一盘散沙

C、互相帮助

D、积极向上

( )，公安工作的重点逐步从农村转入城市。

A．土地革命时期

B．抗日战争时期

C．解放战争时期

D．新中国成立以后

下列各税种中，不能由地方政府制定实施细则的是( )。

A．城镇土地使用税
B．房产税
C．车船税
D．消费税