叔叔的体重是70千克，身高是174厘米。[ ]

What shocked the police and the people around most was that the kidnapper suddenly ______his pocket and took out a gun in a desperate attempt to escape with the kidnapped child.

A．dived into

B．slipped into

C．slid into

D．fit into

供应链的基本要素包括______。

A．供应商和生产厂家

B．供应商、生产厂家、批发及物流、零售企业

C．生产厂家、批发及物流、零售企业

D．供应商、流通业

对交流腐蚀效率的研究认为：铁的工频交流腐蚀量仅在直流腐蚀量的（）以内。

A.20％

B.10％

C.5％

D.2％

是承揽人按照定作人的要求完成工作，交付工作成果，定作人给付报酬的合同。

A．融资租赁合同
B．租赁合同
C．赠与合同
D．承揽合同