有关肺癌下列哪一项是错误的() A．多起源于支气管黏膜上皮的嗜银细胞 B．肺鳞状细胞

Japanese Vice-Premier Sumochizi  called on Friday for _____ all-out effort to develop      ___friendly relationship with neighboring  Asian countries.

A．an; a

B．an;\

C．the; the

D．\;the

—  If you don’t like the white shirt, take the light yellow one.

— OK, but do you have ______ size in light yellow? This one is a bit tight for me.

A．a big

B．a bigger

C．the bigger

D．the big

急性脑中风宜选择()
急性颅内损伤宜选择()

A．颅骨平片

B．脑室造影

C．血管造影

D．CT扫描

E．MRI成像

三极管的（）发射极成为输入回路和输出回路的公共端，称为共发射极放大电路。。

A、基极

B、集电极

C、发射极

D、基极与集电极

感应电流产生的条件是（）。

A.无切割磁感线的运动

B.电路时打开的

C.穿过闭合电路的磁通量发生变化

D.磁通量不变化