计量认证工作是由哪个部门进行的（）
A、行业主管部门
B、计量监督部门
C、车管所机动车管理科
D、计量行政部门
参考答案：D
The visiting Minister expressed his satisfaction with the talks,_______ that he had enjoyed his stay here.[ ]
A. having added
B. to add
C. adding
D. added
36里面有( )个9，( )个4，( )个6。
