在市场经济体制下，资源配置的基础性调节是依靠( )进行的。
A．市场机制
B．政府规划
C．国家调控
D．市场规划
参考答案：A
在轿厢运行时，维修人员应站在安全的地方，手应该扶住钢丝绳.()
They went to the park yesterday, _____? [ ]
A. don't they
B. didn't they
C. aren't they
D. can't they
