单选题:推土机开挖土质路堑作业时,推土机开挖土方作业由切土、运土、卸土、折返、空回等过程组成一个循环.影响作业效率的主要因素是( 题目分类:公路工程管理与实务 题目类型:单选题 查看权限:VIP 题目内容: 推土机开挖土质路堑作业时,推土机开挖土方作业由切土、运土、卸土、折返、空回等过程组成一个循环.影响作业效率的主要因素是( )和运土两个环节。 A.折返 B.卸土 C.空回 D.切土 参考答案: 答案解析:
He lacked the strength to deal with all these problems. He lacked the strength to deal with all these problems.A.think of B.talk about C 分类:公路工程管理与实务 题型:单选题 查看答案
下列关于大额交易的说法正确的是( )。 下列关于大额交易的说法正确的是( )。A.个人账户当日累计人民币交易l0万元以上现金缴存即属大额交易 B.单位银行账户之间当日累计人民币l00万元以上的转账属于 分类:公路工程管理与实务 题型:单选题 查看答案
She was sent a box of chocolates along witha letter saying s She was sent a box of chocolates along witha letter saying she was fired. A.kill 分类:公路工程管理与实务 题型:单选题 查看答案
The ice is not thickenough to bear the weight of a tank. The ice is not thickenough to bear the weight of a tank.A.suffer B.accept C.rece 分类:公路工程管理与实务 题型:单选题 查看答案
It is obvious that he willwin the game. It is obvious that he willwin the game.A.likely B.possible C.clear D.probable 分类:公路工程管理与实务 题型:单选题 查看答案