18.-What is 10% of 800,000,000?
-It is _____.( 。
A.eight millionB.eighty million
C.eight hundred millionD.eight billion

分析 --8億的10%是多少?--是8千萬.

解答 答案:B,A 8百萬;B 8千萬;C 8億;D 80億,句意:8億的10%是多少.是8千萬.故選B

點(diǎn)評 要注意大數(shù)字的構(gòu)成.

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