具有抗癌作用的萜类有效成分是
A. 穿心莲内酯
B. 紫杉醇
C. 甘草酸
D. 齐墩果酸
E. 甜菊苷
The person who put on the third ad probably wants to ______.
A. look for someone to share the beautiful view of the park
B. find another person to pay for her electricity and gas
C. share her room in the flat with another lady
D. rent one room of her flat to a nonsmoker
先天性风疹综合征(CRS)是因孕妇
A. 在孕期1～4个月感染风疹
B. 在孕期6～7个月感染风疹
C. 在孕期8～9个月感染风疹
D. 分娩时罹患风疹
E. 缺乏血清特异性风疹抗体
强心苷类化合物中的异羟基洋地黄毒苷商品名是
A. 西地兰
B. 毒毛旋花子苷K
C. 铃兰毒苷
D. 黄花夹竹桃苷
E. 狄戈辛
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