患者，男性，32岁，昨日暴饮暴食后，突感上腹部剧烈而持续的疼痛，疼痛向腰背部呈带状放

按照对话内容完成题后问题。

Mary: What are you going to do this afternoon?

Amy: I'm going to plant flower seeds in my garden.

Mary: How do you do that?

Amy: First, put the seeds in the soil, then water it. After several days, you can see the sprout.

Mary: It's so easy.

Amy: Yes, you can do it yourself in your garden.

1. What's Amy going to do this afternoon?

A. She is going to make a kite.

B. She is going to play the violin.

C. She is going to plant flower seeds.

2. How does Amy do that?

A. Put the seeds in the soil.

B. Water it.

C. Both A and B.

3. Is it very easy?

A. Yes, it is.

B. No, it isn't.

C. It's hard to say.

有一个1000匝的线圈，在0.4 s内通过它的磁通量从0.01 Wb增加到0.09 Wb。

（1）求线圈中的感应电动势

（2）如果线圈的总电阻为 r="10" Ω，把一个R="990" Ω的电阻连接在线圈的两端如图，求：闭合电键后，通过电阻R的电流

不属于孟子学说的是（）。

A、性善论

B、从仁到义

C、从民主到民本

D、从内圣到外王

“共争青岛归还，同看国贼罢黜；欢呼学生复课，庆贺商店开门”这一对联庆贺的事件是：

A．辛亥革命

B．新文化运动

C．五四运动

D．“一二·九”运动

An analyst does research about money-weighted rate of return and time-weighted rate of return. On 30 June 2010, an investor opened an account with $1000000. The account experienced the following activity over the next two years:

Date	Withdrawals	Net Ending Balance
30 June 2011	$471000	$451000
30 June 2012	—	$499900

As of 30 June 2012, the investor's money-weighted rate of return and timeweighted rate of return:（）

A. are both positive.

B. are both negative.

C. have different signs.