抑制前列腺素、白三烯生成的药物是
A.沙丁胺醇
B.异丙托溴胺
C.麻黄碱
D.丙酸倍氯米松
E.色甘酸钠
参考答案:D
After a month of training, he became __________ to the work as a high-speed train driver.
A.analytical
B.sensitive
C.artificial
D.equal
按覆盖的地理范围进行分类,计算机网络可以分为:局域网、【 】和广域网。