长螵蛸药材的原动物是（）
A.大刀螂
B.银环蛇
C.小刀螂
D.五步蛇
E.巨斧螳螂
参考答案：C
CT中像素的大小为（）
A.≤0.001mm
B.≤0.01mm
C.≤0.1mm
D.≤1mm
E.≤10mm
He put forward his suggestion at the meeting that every means_____ to save the crops before the
storm came. [ ]
A. was tried
B. should try
C. be tried
D. tried
