She often has bad colds in winter, ______
A. does she
B. doesn't she
C. has she
D. hasn't she
According to the professor, why was world market important for the United States agriculture
A. They provided evidence that Jefferson's ideal could be achieved.
B. They made farmers less dependent on local bankers.
C. They affected the prices that farmers could receive for their crops.
D. They decreased the power of the railroads to control farm prices.
感冒的主要病机是( )
A. 卫表不固
B. 肺失清肃
C. 卫表失和
D. 易于流行
E. 肺气失宣
呃逆病理性质有虚实之分，实证多为( )
A. 寒凝
B. 火郁
C. 气滞
D. 痰阻
E. 以上都是
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