危险货物集装箱的运价率按照《铁路货物运价率表》中规定的集装箱运价率加______。
A．10% B．20% C．30% D．40%
参考答案：C
一般来说，剪切流洞可以分为压力流动和（）。
The house still needed a lot of work, but _______the kitchen was finished.
A．instead
B．altogether
C．at once
D．at least
