需求拉上型通货膨胀的成因主要是（）
A.财政赤字
B.工资增长过快
C.基建规模过大
D.国际收支持续顺差
参考答案：A, C, D
---What do you think of your boss?
---He always work hard and he is ____________ late for work.
A usually B often C hardly ever D many times
The silk road, _______ Marco entered China, was important for the exchange of goods and ideas.
A．which
B．along which
C．after which
D．where
