下列费用中属于动态投资部分的是（）。
A．保险费
B．基本预备费
C．涨价预备费
D．营业税
参考答案：C
—Does Mary only have an apple for breakfast?
—Yes. She eats like a bird ______.
A．to wake up
B．to be strong
C．to lose weight
D．to fall asleep
Yesterday I met Sandy. We ________ since ______ middle school.
A．haven’t seen, finished
B．haven’t seen, finishing
C．hadn’t seen, finished
D．hadn’t seen, finishing
