根据《中华人民共和国宪法》规定，（）有权制定法律。 ["全国人民代表大会和全国人民代表大会常务委员会","全国人民代表大会","国务院","全国人民代表大会常务委员会"]
与正常二倍体相比，雌核发育二倍体的成活率明显升高。
Which statements are valid for a local SPAN configuration？ （） [" Source and destination interface must be on the same host"," Source and destination interfaces can be on different hosts"," Destination vEthernet interface can be on a different VLAN than the source"," Destination interface can be a physical port"," Destination interface cannot be a physical port"]
旅客列车乘务组由（）乘务员组成。 ["餐车","客运人员","公安乘警","车辆"]
有效波
结合实际阐述现代教学媒体的选择与应用应遵循怎样的原则？
