劳务派遣只能在（）工作岗位上实施。
A.临时性
B.辅助性
C.替代性
D.固定性
参考答案：A, B, C
—I’d like to call you at 10 o’clock next Friday morning if it is convenient.
—I’m afraid I _______ an important meeting.
A．will have attended
B．will be attending
C．will attend
D．would attend
二进制数1100100转换成十进制整数等于( )。
A．96
B．100
C．104
D．112
