题目内容

矩阵式变频电路是一种变频电路。它采用的开关器件是全控器件；控制方式是斩控方式。

A. 对
B. 错

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New Yorker Katy Benson wears, other people notice.

A. Whatever
B. Whoever
C. However
D. Never

It might be something she made herself, or a(n) combination of things she has put together.

A. few
B. odd
C. nothing
D. lots

What we are planning is technology never seen in Australia before.

A. outdated
B. out of fashion
C. cutting-edge
D. ancient

There are over 40 million customers in the 15 to 24 age group and they spend an average of $8,750 each.

A. mainstream
B. purchase
C. latest
D. potential