下列各项中,属于行政许可的是()
A、行政机关依据申请发放房产证
B、行政机关依据申请颁发驾驶执照
C、行政机关依据申请发放社会保险金
D、行政机关依据申请办理身份证
参考答案:B
具有竞争性拮抗作用的药物为
A.肾上腺素和普萘洛尔
B.新斯的明与阿托品
C.多巴胺与苄丝肼
D.青霉素与克拉维酸
E.维生素B6与异烟肼
—He, together with his parents _______ going to visit Shanghai in July. How about you?
—I'm afraid I have to stay at home _______.
A. are; on my own
B. is; by myself
C. is; by my own
D. are; on myself