问题
单项选择题
为了迅速控制心绞痛发作，病人应自带的抗心绞痛药物是( )
A．硝酸甘油
B．硝酸异山梨酯
C．扎莫特罗
D．维拉帕米
答案
参考答案：A
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为了迅速控制心绞痛发作，病人应自带的抗心绞痛药物是( )
A．硝酸甘油
B．硝酸异山梨酯
C．扎莫特罗
D．维拉帕米
参考答案：A
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wood and other products. Trees provide food not only for man, but also for animals. 2 trees, many animals could not live on the earth. It's not 3 for man to live on the earth, either. The second important way is that trees give us shade (树荫). On a hot summer day, people are eager to have a rest under the shade of a tree after 4 a long way. You can imagine how important the shade of a tree is to man and animals. The third important way is that trees help to 5 droughts and flood. However, in many parts of the world, man hasn't realized it. He has cut trees down in large numbers. In the end, he finds that he has lost the best friends he had. 1.______ 2.______ 3.______ 4.______ 5.______ |