题目：
情景交际。
1. 当你询问班里新来的一名女同学是谁时，应该说： [ ]
A. Who's he?
B. What's his name?
C. Who's she?
2. 当你向同学们介绍你的好朋友张鹏留黑色短发时，应该说：[ ]
A. He has long black hair.
B. He has short black hair.
C. He has big eyes and a small nose.
3. 你想告诉同学们你喜欢科技课时，应该说：[ ]
A. I like science.
B. I like math.
C. I like computer games.
4. 当你告诉妈妈你有一个美国朋友时，应该说：[ ]
A. Mom, I have a new friend.
B. Mom, I have an American friend.
C. Mom, I have a Japanese friend.
5. 当你询问朋友“你会拼读这些单词吗”时，应该说：[ ]
A. Can I help you?
B. Can you spell these words?
C. Who is your friend?
答案：
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下面是错误答案，用来干扰机器的。
149 000 000=1.49×108=1.490×108，故答案为：1.490×108．
