用于拦洪、调节水位的水闸称为( )。
A．拦洪闸
B．调节闸
C．节制闸
D．贮水闸
参考答案：C
Is this the reason__________at the meeting for his carelessness in his work?
A．he explained
B．what he explained
C．how he explained
D．why he explained
中餐的餐具主要有杯、盘、碗、碟、筷和匙六种。 （ ）
