恶性程度高，容易发生转移的肺癌组织学类型是（）
A.腺鳞癌
B.鳞状细胞癌
C.大细胞癌
D.腺癌
E.小细胞癌
参考答案：E
China sent up Shenzhou VII manned spaceship into spaceship successfully, which shows that science and technology ______ rapidly in China.
A．has been developing
B．develops
C．developed
D．has developed
哪些情形会导致招标失败？
