【单选题】下面关于传染病的传播途径表述错误的是( )。
C.
若献血员为乙型肝炎病毒携带者,受血者极易感染乙型肝炎病毒而患乙型病毒性肝炎
【单选题】What is said about Twitters business model?
A.
There has been a complete set of business model since Twitter was established.
B.
Twitter's employees are encouraged to have brainstorms for better business model.
C.
Twitter has worked out detailed business model about how to support itself.
D.
With the passage of time. Twitter has managed to improve its business model.
【单选题】中版潮信资料包括:Ⅰ平均大潮升,Ⅱ平均高潮间隙,Ⅲ平均海面,Ⅳ格林尼治上中天时刻,Ⅴ潮龄.
【简答题】A 新斯的明 B 毒扁豆碱 C 肾上腺素 D 噻吗洛尔 E 毛果芸香碱 1 通过抑制AChE的活性,滴眼可用于治疗青光眼的药物是() 2 直接激动M受体,引起缩瞳,可治疗青光眼的药物是() 3 通过阻断β受体,使房水生成减少而用于治疗青光眼的药物是() 4 通过激动肾上腺素受体,而用于治疗青光眼的药物是()
【判断题】The G2C business model allows citizens to interact with government agencies online.