轮式挖掘机作业时应将支腿支稳垫牢,后轮略微离地,前后轮制动住。
参考答案:对
俗话说:“半大小子,气死老子。”许多家长报怨说,孩子进入初中后特别不听话,叫他向东他偏向西,不让他干他非要干。孩子的这种心理属于
A.从众心理
B.逆反心理
C.攀比心理
D.自卑心理
The company has a free long-distance telephone number _____ customers may call with any question
they have about its products.
[ ]
A. so that
B. although
C. even if
D. as though