首选化疗的肺癌类型是（）
A.鳞癌
B.小细胞癌
C.大细胞癌
D.腺癌
E.支气管肺泡癌
参考答案：B
The climbers succeeded in climbing to the top of the mountains, and they owed their success to the preparations they ______.
A．make
B．had made
C．made
D．have made
应答器安装完成后，应答器实际设置位置与设计位置允许偏差（）。应答器组内相邻应答器间的距离为5﹢0.5m。
A、±0.25m
B、±0.5m
C、±1m
D、±1.5m
