十进制整数100转换为二进制数是 ( )
A.1100100
B.1101000
C.1100010
D.1110100
参考答案:A
潜水艇原停在海面下650米,先上浮200米,又下潜150米,这时潜水艇在海面下______米处.
—Patrick has won $ 1,000.
—_____? He isn’t any happier.
A.So what
B.So where
C.So why
D.So how