【判断题】演奏是左手手指过于弯曲,用指尖末端甚至指甲触弦
【判断题】轨道电路是以钢轨作为导体,两端加上机械绝缘(或电气绝缘),接上送电和受电设备构成的电路。
【单选题】The paint is still wet. ______!
A.
Be not sure to touch it
B.
Be sure not to touch it
C.
Be sure to not touch it
D.
Don't be sure to touch it
【单选题】I'm leaving for Xisai Mountain this afternoon. ___you have packed everything. A. To be sure B. Sure C. Be sure D. Are sure
【判断题】轨道电路是以钢轨作为导体,两端加上机械绝缘,接上送电和受电设备构成的电路。
【判断题】轨道电路是以线路的两根钢轨作为导体,两端加以机械绝缘(或电气绝缘),接上送电和受电设备构成的电路。
【单选题】The print is still wet. ______!
A.
Be not sure to touch it
B.
Be sure not to touch it
C.
Be sure to not touch it
D.
Don't be sure to touch it
【判断题】S3C2440A处理器的典型工作频率是400Mhz,最高可以支持533Mhz主频。