交换机换向时出现异常声音是很正常的。
参考答案:错
People may have different opinions about Karen, but I admire her. _____, she is a great musician. [ ]
A. After all
B. As a result
C. In other words
D. As usual
下列不属于气候资源的是()。
A.太阳辐射
B.水分
C.热量
D.土壤