直探头分辨力测试若h=O或两波能完全分开，则取（） A: R ＞26 dB B: R ＞30 dB C: R ＞46 dB D: R ＞50 dB

Bitterness ______ the man who had made the world laugh. () A: fed on B: fed with C: fed up D: fed<br/>for

background:url(2、png),url(1、jpg),url(3、png),url(4、jpg);},表示哪张图片处在最上层() A: 2、png B: 1、jpg C: 3、png D: 4、jpg

PNG<br/>格式可以支持高达多少bit<br/>的颜色? A: 24 B: 32 C: 46 D: 58

Have you fed the dog yet?TO____________ fed yet?

46÷2可以读作2除以46．______．

Don’t feed the fish again. I ____ them just now. A: have fed B: fed C: was feed D: has fed

汇编后，与语句X1 DB 2 DUP(4,6),5等同的是（ ）。 A: X1 DB 4,6,5 B: X1 DB 2,4,6,5 C: X1 DB 4,6,4,6,5 D: X1 DB 4,6,5,4,6,5

In 2012,U.S.core inflation was 2.1 percent. This inflation rate A: is lower than the inflation rate the Fed accepts as creating stable prices. B: is about equal to the inflation rate the Fed accepts as creating stable prices. C: is more than 2 percentage points higher than the inflation rate the Fed accepts as creating stable prices. D: None of the above answers are correct because the Fed has never associated an inflation rate with stable prices.

随着时间变化，声压波动小于 （ ）的称为稳态噪声。 A: 1dB B: 2 dB C: 3 dB D: 10 dB