大型养路机械各车在区间独自运行时，续行间隔不得少于（）。
A、100m
B、200m
C、300m
D、400m
参考答案：C
改写同义，每空一词。
1. How is the weather?
____ ____ the weather ____?
2. What can I do for you?
____I____ you?
3. I ride my bike to the shop.
I go to the shop ____ ____.
4. What's the price of the coat?
____is the coat?
5. I want a cup of tea.
I____ ____a cup of tea.
《土工试验规程》（SD128-84）中规定含水量试验称量应准确至（）
A、1g
B、0.1g
C、0.01g
D、0.001g
