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问题 单项选择题

异丙肾上腺素治疗哮喘最常见的副作用是

A．心动过速

B．失眠

C．直立性低血压

D．腹泻

E．呼吸抑制

答案

参考答案：A

解析：异丙肾上腺素用于治疗呼吸系统疾病时，其常见不良反应有心动过速、心律失常、心悸、潮红及诱发心绞痛。

单项选择题

A multicast router may receive thousands of multicast（）every day for different groups. If a router has no knowledge about the membership status of the（）, it must broadcast all of these packets. This creates a lot of traffic and consumes（）. A better solution is to keep a list of groups in the network for which there is at least one loyal member.（）helps the multicast router create and update this list. For each group, there is one router that has the duty of distributing the（）packets destined for that group. This means that if there are three multicast routers connected to a network, their lists of groupids are mutually exclusive. A host or multicast router can have membership in a group.

This creates a lot of traffic and consumes（）.

A．capability

B．power

C．bandwidth

D．address
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判断题

代维公司应建立自查和考核制度，按要求开展代维质量自查（塔桅为半年，其它为月度），但与相关单位和员工绩效不进行挂钩。（）
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