慢性左心衰竭患者常见的呼吸困难类型是()
A.吸气性呼吸困难
B.呼气性呼吸困难
C.端坐呼吸
D.劳力性呼吸困难
E.夜间阵发性呼吸困难
参考答案:E
One of the men held the view ____ the book said was right. [ ]
A. that what
B. what that
C. that
D. whether
尼日尔的矿产资源主要有()。
A.钨
B.磷酸盐
C.铀
D.煤
E.铬