最适用于阵发性室上性心动过速的钙通道阻滞药为维拉帕米。()
参考答案:对
My ship()that port next month.
A.calls at
B.has called at
C.call at
D.will call at
混凝土和预应力混凝土中对细骨料氯离子含量有什么要求?