下列哪项不是采用 * * 避孕药环的禁忌证（） A.Ⅲ度子宫脱垂患者 B.宫颈内口松弛或宫

     I am an English girl. My name is Mary. I'm twelve. My dad and mom are English teachers. I have a

sister. Her name is Ann and she is twelve years old, too. We are in China now. Ann and I study(学习)

in Beijing No. 4 Junior High School. We are in the same grade, but in different classes. Ann has a cat.

It looks nice. It has a small mouth and two small ears. It is white. We have friends here. They're good.

根据短文内容，判断正（T）误（F）。

( )1. Mary is from the U.S.A.

( )2. Ann is in Beijing No. 4 Junior High School.

( )3. Ann and Mary have good friends in China.

( )4. Ann has a black cat.

( )5. They are in the same class.

如图为悬崖跳水精彩的一瞬间．一位跳水爱好者在体验悬崖跳水的惊险和刺激的同时，测出他在空中下落的时间为3.0s．若将跳水过程等效为自由落体运动，则悬崖距离水面的高度约为（g=10m/s²）（　　）

A．30m

B．35m

C．40m

D．45m

下面显示的是查询设计视图的设计网格部分，从下图所示的内容中，可以判断要创建 的查询是______。

A．删除查询

B．追加查询

C．生成表查询

D．更新查询

下列选项中寻常型天疱疮是（）

A.带状疱疹病毒侵犯面神经睫状神经节

B.尼氏征阳性

C.口、眼、会阴出现溃疡

D.口腔黏膜上皮出现过角化及异常增生

E.幼儿舌系带两侧出现溃疡

积雨云时常是几个雷暴单体的结合体，它在卫星几个主要通道（红外、水汽、可见光）上的特点有哪些？（从识别云的6个判据说明）