题目内容

Later diesel and electric powered vehicles such as cranes, excavators( ) and bulldozers.

A. 脚手架
B. 挖掘机
C. 起重机
D. 推土机

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Following evaluation of bids ( ), the owner typically awards a contract to the most efficient bidder.

A. 中标
B. 努力
C. 投标
D. 吩咐

抗压强度

A. compressive strength
B. shear strength
C. flexural strength
D. yield strength

抗力

A. strength
B. stiffness
C. stability
D. resistance

受拉承载力

A. flexural capacity
B. compressive capacity
C. tensile capacity
D. fatigue capacity