土地利用总体规划是什么A．对一定时期内一定行政区域范围的土地开发、利用和保护所制定的

Read and judge.(读短文后判断正误，对的打“T”，错的打“F”。)

     I am Alice. I come from America. I live in Beijing now. Here I have many Friends. Every day

I go to school by bike at seven o'clock. We learn Chinese ,math, English and so on. They're all

interesting. But I am not good at Chinese. My teacher often  helps me. I like China very much.

( )1. Alice is from Canada.

(     )2. Now Alice lives China.

(     )3. Alice goes to school by bike every day.

(     )4. Alice studies Chinese very well.

(     )5. Alice's friends often help her with Chinese.

一个物体在7个恒力的作用下处于平衡状态，现撤去其中两个力，其它力大小和方向均不变．则关于物体的运动下列说法正确的是（　　）

A．可能做圆周运动

B．一定做匀变速曲线运动

C．可能处于静止状态

D．一定做匀变速直线运动

胃癌的盆腔转移途径是()
前列腺癌的盆腔转移途径是()

A．淋巴道转移

B．直接蔓延

C．血道转移

D．种植性转移

E．椎旁静脉系统的转移

某孔径的尺寸规定为φ10-0.02-0.05，下列哪个尺寸合格（）

A、φ10.000

B、φ9.980

C、φ9.945