问题
单项选择题
跳汰机技术要求中空载实测噪声应不超过（）dB。
A、65
B、85
C、15
D、120
答案
参考答案：B
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跳汰机技术要求中空载实测噪声应不超过（）dB。
A、65
B、85
C、15
D、120
参考答案：B
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| 1.Is the dictionary Dale's? A Yes, it is B No, it isn't C Yes this is 2. What color is Jim's watch? A. Red B. White C. Yellow 3.You lost your computer game, you can call ______ . A. Jim B. Lucy C. Bob 4.Who lost a backpack? A Lucy B Bob C Dale 5.You can call Lucy at ______ . A 127-3601 B 315-4171 C 212-9725 |