汽油机与柴油机不同之处在于：汽油机是压燃，柴油机是点燃。_爱下问搜题

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问题判断题

汽油机与柴油机不同之处在于：汽油机是压燃，柴油机是点燃。

答案

参考答案：错

选择题

当膈肌收缩时

A．膈肌顶部上升

B．胸廓容积缩小

C．肺内气压增大

D．气体进入肺内

单项选择题

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%
2	4.4%
3	6.6%

If each fixed income product has the same maturity and default risk, the opportunity cost of investing in product 2 is closest to:（）

A. 0.0%

B. 1.1%

C. 2.2%