我国工程咨询企业的资质认定由( )办理。

A．国家发改委
B．中国工程咨询协会
C．国家发改委委托中国工程咨询协会
D．中国工程咨询协会配合国家发改委．

What is the primary disadvantage of a permanent chain chaser system?（）

A.It requires anchor handling boats with more horsepower

B.Chain chasers work in shallow water only

C.Chain chasers will not work with piggyback anchors

D.It takes longer to deploy anchors using chain chasers