在普通光学显微镜下,一个细小物体若被显微镜放大50倍,这里“被放大50倍”是指该细小物体的()
A.体积
B.表面积
C.像的面积
D.长度或宽度
E.像的长度或宽度
参考答案:D
— Hi, Jane, would you like to go hiking with me on Sunday— (). I have too much homework.
A.I'd love to
B.Of course not
C.That's OK
D.Sorry, I can't
转子流量计特别适用于()流量的测量。
A.大
B.小
C.微小