In return, immigrants have ____(rich) their adopted land with their skills,talents, ideas, and hard work.
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The wide ____(vary) of immigrant groups in the U. S. has given the nationgreat ____(diverse) in its industrial development.
The U.S.A. is a strong and ____(prosper) country largely because it is a nation of immigrants.
具有双硫仑样反应的抗菌药是
A. 喹诺酮类
B. 头孢菌素类
C. 氨基糖苷类
D. 大环内酯类
E. 青霉素类
以下属于氨基糖苷类药物常见的不良反应的是
A. 胃肠道反应
B. 影响牙齿发育
C. 肝毒性
D. 耳毒性
E. 皮疹
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