A. Hello earth B. Hello earth!
A. 0 B. 1 C. -1 D. 32
A. 666 B. 667 C. 999 D. 1000
A. ceil(6.15) B. ceil（6） C. ceil(5.49) D. ceil(5.99)
A. 7000500 B. 70,005.00 C. 70100 D. 出错
A. Rose are red B. Rose are $color
A. I love apple B. I love wine
A. He LOVESs her B. He LOVESs hEr C. He LOVES hEr D. HE LOVEs hEr
A. B. cdef C. a D. def
A. ”hello” B. ”hello” C. ”hello!”
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