Which of the following is NOT needed for a young man to be happy?
A. Hard work
Being free from trouble
C. Wealth
D. Health
查看答案
A.streetsB.crowdsC.passengersD.city
A. streets
B. crowds
C. passengers
D. city
You can stay here ______you keep quiet.
A. as long as
B. unless
C. in case
D. in order
对水泥稳定类基层,土的液限不宜超过()。
A. 0.2
B. 0.25
C. 0.3
D. 0.35
股票及股票市场的风险包括系统性风险和非系统性风险。系统性风险可以通过投资组合实现风险分散。 ()
A. 正确
B. 错误