根治术后5年生存率为65%的是( )。 A．脾曲结肠癌，DukesC期 B．乙状结

用方框中所给词的适当形式填空，完成短文。

Hello!  I’m Jenny. There  小题1:     many festivals at our school. Let me 小题2:you!  This month is October. All the 小题3:   love October. In October, there is a Sports  Festival. We have a basketball game 小题4:  a volleyball game during (在…期间) the festival. In the middle (中旬) of this month, we小题5:   an English speech contest during the English Festival. October 19th is the day for a school trip. We go to Beijing  小题6:   the teachers. On the last day of this month, there is a Music Festival. On that day, we can enjoy beautiful songs, piano music and so on. It is wonderful. Next month, there is  小题7:    Art Festival. Students often display  (展示) 小题8:   pictures on that day. I study and play games小题9: my school. It gives 小题10:   happiness (快乐). I love my school very much.

下列方程中，常数项为零的是（　　）

A．x²+x=0

B．2x²-x-12=0

C．2（x²-1）=3（x-1）

D．2（x²+1）=x+4

甲在乙的画展中看中一幅画，并提出购买，双方约定以1万元成交。甲同意待画展结束后再将属于自己的画取走。根据《物权法》规定，该画转让时，物权自( )时发生效力。

A．现实交付；甲提出购买时

B．指示交付；双方约定生效时

C．简易交付；甲实际取走该画时

D．占有改定；双方约定生效时

水中总氰化物是指在水样中加入EDTA且在碱性条件下蒸馏能形成氰化氢的氰化物。

液力偶合器的主要构造是怎样的？