问题
单项选择题
使用奎尼丁治疗心房纤颤常合用强心苷，因为后者能
A．拮抗奎尼丁的血管扩张作用
B．拮抗奎尼丁对心脏的抑制作用
C．提高奎尼丁的血药浓度
D．增强奎尼丁的抗心律失常作用
E．对抗奎尼丁使心室率加快的作用
答案
参考答案：E
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使用奎尼丁治疗心房纤颤常合用强心苷，因为后者能
A．拮抗奎尼丁的血管扩张作用
B．拮抗奎尼丁对心脏的抑制作用
C．提高奎尼丁的血药浓度
D．增强奎尼丁的抗心律失常作用
E．对抗奎尼丁使心室率加快的作用
参考答案：E
| 阅读短文，从下列方框中，选择正确的单词并用其适当的形式填空。 | |
students sleep less than nine _____ every night because they have much homework _____. Some homework is given by their teachers, and some by their parents. _____, some students don't know how to save time. They are not careful _____ while they do their homework, so it _____ them a lot of time. Some students spend too much time watching TV programmes or playing computer games. They stay up very late. Some students have to get up early every morning on weekdays to get to school on time by bus or bike. It can be a long way from home to school. |