下列光学仪器中能得到缩小虚像的是[ ]
A、照相机
B、平面镜
C、放大镜
D、观后镜
答案：D
一个质数和比它小的每一个非零自然数都互质．______．
How ____ green tea ____ there in the glass? [ ]
A. much; is
B. many; is
C. much; are
D. many; are
