【单选题】《中国药典》规定,胶囊剂平均装量0.30g及0.30g以上时,装量差异限度为
【单选题】He had his camera ready ________ he saw something that would make a good picture. [ ]
【单选题】(2011·山东)He had his camera ready ________ he saw something that would make a good picture.
【多选题】以下关于IEEE 802.3z标准的描述中,正确的是()。
A.
IEEE 802.3z是Gigabit Ethernet的协议标准
B.
IEEE 802.3z定义的传输介质有双绞线和光纤
C.
IEEE 802.3z定义MII来隔离MAC子层与物理层
D.
IEEE 802.3z保持Ethernet帧结构与长度不变
【单选题】He had his camera ready ________ he saw something that would make a good picture.