问题
单项选择题
噪声的传播途径有哪些()。
A.撞击传声和固体传声
B.漫反射传声和固体传声
C.空气传声和固体传声
D.空气传声和漫反射传声
答案
参考答案:C
噪声的传播途径有哪些()。
A.撞击传声和固体传声
B.漫反射传声和固体传声
C.空气传声和固体传声
D.空气传声和漫反射传声
参考答案:C
An analyst does research about opportunity cost and gathers the following information about three fixed income products available for the public:
Fixed Income Product | Interest Rate |
1 | 3.3% |
2 | 4.4% |
3 | 6.6% |
A. 0.0%
B. 1.1%
C. 2.2%