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【单选题】
( )是指对整理之后留在现场的必要物品进行分门别类放置,排列整齐,明确数量并且进行有效的标识A.
整理
B.
整顿
C.
清扫
D.
清洁
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【单选题】The new CEO demanded that all inter-office communications ______ in writing rather than in person, ______ possible.
A.
have been made; whoever
B.
would be made; whichever
C.
be made; whenever
D.
were made; whatever
【单选题】The new CEO asked that all inter-office communications ______ in writing rather than in person, ______ possible.
A.
have been made; whoever
B.
would be made; whichever
C.
be made; whenever
D.
were made; whatever
【简答题】土壤质地可分为三大类,即
【单选题】下列关于保守力做功错误的是
A.
由重力对物体做功特点可知重力是一种保守力.
B.
由弹簧弹性力对物体做功特点可知，弹簧弹性力是一种保守力.
C.
由摩擦力对物体做功特点可知，摩擦力是一种保守力.
D.
由万有引力对物体做功特点可知，万有引力是保守力.
【简答题】土壤质地可分为( )、( )和( )三类。
【单选题】According to the text, Forrester Research Prediction might be different if ______.
A.
outsourcing abroad is large enough to matter much
B.
the proportion of jobs that can be moved will rise
C.
more comprehensive factors are taken into account
D.
education improvement in emerging economies plays a role
【单选题】保守力的特点是______，保守力的功与势能的关系式为______。
A.
做功与路径有关；W=-△Ep
B.
做功与路径无关；W=-△Ep
C.
做功与路径有关；W=△Ep
D.
做功与路径无关；W=△Ep
【简答题】按苏联卡庆斯基的质地分级制,土壤质地可分为沙土、 和 三类
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