【简答题】He
had to borrow money to _____ his business.A. save B. save from C. saving D. saving from
【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
【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】以下有关泌尿系统的描述不正确的是
B.
人每天能形成原尿约150L,而尿液只有1.5L左右,这是肾小球重吸收作用的结果
C.
肾脏是形成尿液的器官,而膀胱的作用是暂时贮存尿液
【简答题】A.He left his notes in class. B.He had to borrow the notes from his classmates. C.He doesn't have an exam. D.He loaned his notes to a classmate.
【单选题】下列哪种物质不是 NADH 氧化呼吸链的组成成分?