菜肴的()对人的视觉冲击力最大,所引起的感觉也最强烈。
A.形态
B.色彩
C.盛器
D.数量
参考答案:B
— I just want to know. Please tell me, how much do you make an hour?
— If you ________ know, I make $20 an hour.[ ]
A. will
B. shall
C. must
D. need
堆垛机报警灯的接入电压是()
A.12V
B.24V
C.220V
D.380V