印刷质量合格的烟支,除了钢印图案要求打印完整清晰以外,还要求打印在水松纸的位置必需正确。
参考答案:错
— Father ,you promised!
— Well, ______ . But it was you who didn't keep your word first. [ ]
A. so was I
B. so did I
C. so I was
D. so I did
下列关于钙拈抗剂抗心绞痛的叙述,不正确的是( )
A.扩张冠脉,改善缺血区供血、供氧
B.阻断钙离子通道,阻止钙离子内流
C.心肌收缩性减弱,心率减慢
D.减轻心脏负荷,降低心肌耗氧
E.心肌收缩性增强,心率加快