【简答题】He
had to borrow money to _____ his business.A. save B. save from C. saving D. saving from
【单选题】He had to borrow money to ___ his business.
【简答题】句法成分是——的组成成分,句法结构是由若干词按照语法规律组成的。
【简答题】京剧人物扮演的角色分别叫:生、( )、( )、( )丑。
【单选题】楼梯铺贴大理石时间定额为3.17工日/10m2,则产量定额为( )。
【单选题】以下说法正确的是()
A.
4PSK信号的矢量图中,每种相应相位对应1比特信息
B.
4DPSK信号的矢量图中,每个比特被映射成一个相位
C.
4DPSK信号的生成可以先对双比特码元进行码变换,然后再按照4PSK信号的相位映射关系实现
D.
信息传输速率不变的情况下,通过增加进制数M,可以增大信号带宽
【多选题】黄维若教授认为次要人物则包括了哪些()。
【单选题】He slipped and had his leg broken. _______, he will have to be away from school for two or three months.
【单选题】下列哪种物质不是 NADH 氧化呼吸链的组成成分?