起重机的额定起重量中包括集装箱专用吊具、电磁铁吊具、真空吸盘、（）等可分吊具的重量。
A.抓斗
B.吊钩
C.吊钩组
D.挂索
参考答案：A
________full preparations, we decided to put off the meeting till the next week. [ ]
A. We did not make
B. We had not made
C. Not having made
D. Having not made
CDMA系统中使用的多路复用技术是 (43) 。我国自行研制的移动通信3G标准是 (44) 。
A．时分多路 B．波分多路 C．码分多址 D．空分多址
