Which picture means "He (She) has a headache"?[ ]
A. B. C. D.
答案:C
一个“上”字形的霓虹灯,通过凸透镜成像在光屏上,图中四个像正确的是( )
A.
B.
C.
D.
--- Has Mary come back yet?
--- Yes. She has got many books from her elder schoolmates, and the number ___ 1000.
A.adds up
B.adds up to
C.add to
D.add up to