When a teacher intends to present or explain a new language point, which of the following
A. Whole class work.
B. Group work.
C. Pair work.
D. Individual work.
履带起重机的特点之一是()较差。
A. 可靠性
B. 稳定性
C. 转移性
D. 行走性
Around the combustion chamber, all the main components are to give low thermal strains and
A. drill cooled
B. hole cooled
C. tube cooled
D. bore cooled
使用钢丝绳(含棘轮式钢丝绳紧固器)加固时,钢丝绳与货物、车辆栓接点接触处,应使用()号以上铁线将钢丝绳与栓接点进行捆绑或采取其它有效固定措施,防止钢丝绳在运输过程中松弛、脱落。
A. 4
B. 6
C. 8
D. 10