题目内容

Please read Text B in Unit 8 and choose the best answer to complete the statement.If you are pregnant, you need to check with your doctor before using ______.

A. ophthalmic drops
B. skin patches
C. vaginal medicines

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(About Text B in this Unit)A route of administration in pharmacology is the path by which a drug is taken into the body. Routes of administration are generally classified by the location at which the drug is applied. Scan the passage for different drugs and write them after the correct route by which they get into our body.

在行业中少数几个厂商控制着整个市场的生产和销售的市场结构,这属于?

A. 完全竞争
B. 垄断竞争
C. 寡头垄断
D. 完全垄断

许多厂商生产和销售有差别的产品,市场中既有竞争因素又有垄断因素存在的市场结构是?

A. 完全竞争
B. 垄断竞争
C. 寡头竞争
D. 完全垄断

在一个行业中的某种产品或者服务完全被一家企业独占,没有竞争对手,这属于?

A. 完全竞争
B. 垄断竞争
C. 寡头竞争
D. 完全垄断