低合金钢与高合金钢的区别是前者合金元素总的质量分数小于5%，后者大于5%。( )
参考答案：错
用SX-600驻波功率计测量电台的反射功率时POWER开关应置于（）位置。
A、REF
B、FWD
C、CAL
D、SWR
Her shoes ____________ her dress; they look very well together. [ ]
A. suit
B. fit
C. compare
D. match
