ICU中心监护站应设在所有病床中央，病床以何种形状排列（）
A.方形
B.圆形
C.半圆形
D.弧形
E.扇形
参考答案：E
用万用表欧姆挡测量电阻时，所选择的倍率挡应使指针处于表盘的（）。
A、起始段
B、中间段
C、末段
D、任意段
To their great fear, they found________in the heaviest snowfall they had ever had. [ ]
A. they were catching
B. themselves caught
C. they had caught
D. themselves catching
