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【多选题】
Life coaches are employes by some busy executives to give advice about how they can manage their working lives. Below are some examples of this advice. Put the verbs in brackets in the present perfect simple or present perfect continuous tense. 1 Just because you ___________(do) the same thing for years, it dosen't mean you have to go on doing it. 2 If you __________(have) the same job for seven years, it's probably time for a change. 3 If you ___________ (know) only success in your life, failure can be very difficult to deal with. 4 Being at the to can seem lonely. The reason is probably that you _________( not/listen) to other people enough. 5 You _________ (worry) too much about little things-the things that are important are your health, your family and your business. 6 Busines should be a pleasure. As far as I can tell, for you up to now it __________(be) a chore. 7 You _________(think) about your standard of living and not your quanlity of life. To get to where you are now ________ (be) your ambition all your life. I am not surprised you feel uncertain about what to do next.A.
have been doing
B.
have had
C.
have known
D.
have not been listening
E.
have been working
F.
has been
G.
have been thinking
H.
has been
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【简答题】墙裙定额工程量以m2计算,_______同墙面计算规则,_______按图示尺寸。
【简答题】证明函数f（x）= x 1+x 在（-1，+∞）上是增函数．
【单选题】重力场中理想不可压缩恒定流动中同一条流线上两点A、B，A点的流速【图片】大于B点的流速【图片】，则（ ）。
A.
A 点的测压管水头 >B 点的测压管水头
B.
A 点的测压管水头 点的测压管水头
C.
A 点的压强水头 >B 点的压强水头
D.
A 点的压强水头 点的压强水头
【简答题】某办公楼砖外墙干粘石(墙面分格),按施工定额工程量计算规则计算,干粘石面积为 3200m2 。施工定额项目表如下,试计算其工料用量。 干粘石 工作内容:包括清扫、打底、弹线、嵌条、筛洗石渣、配色、抹光、起线 、粘石等 单位: 10m2 编号 项目 综合人工 水泥 砂 石渣 工日 kg 147 墙面、墙裙 2.62 92 324 60 148 柱面 3.96 96 340 60 注:墙面、墙裙、柱面...
【简答题】证明函数f（x）=x+ 1 x 在（1，+∞）上是增函数．
【单选题】重力场中理想不可压缩恒定流动中同一条流线上两点A、B，A点的流速u A 大于B点的流速u B ，则（）
A.
A点的测压管水头〉B点的测压管水头；
B.
A点的测压管水头〈B点的测压管水头；
C.
A点的压强水头〉B点的压强水头；
D.
A点的压强水头〈B点的测压管水头。
【简答题】已知函数 f(x)=lnx+ m x (x＞0) 在（1，+∞）上为增函数，函数g（x）=lnx-mx（x＞0）在（1，+∞）上为减函数． （1）分别求出函数f（x）和g（x）的导函数； （2）求实数m的值； （3）求证：当x＞0时， xln(1+ 1 x )＜1＜(x+1)ln(1+ 1 x ) ．
【多选题】个人与社会的关系,最根本的是个人利益与社会利益的关系。社会需要是个人需要的集中体现,是社会全体成员带有根本性、全局性、长远性需要的反映。个人利益的满足只能是在一定的社会条件下、通过一定的社会方式来实现。在社会主义社会中,个人利益与社会利益在根本上是一致的。社会利益离不开个人利益,个人利益也离不开社会利益,社会利益
A.
是个人利益的相加
B.
体现了作为社会成员的个人的根本利益和长远利益
C.
是个人利益得以实现的前提和基础
D.
保障着个人利益的实现
【简答题】一种物质或若干种物质的混合物，由于它的化学、物理或毒性特性，使其具有易导致火灾、爆炸或中毒的危险的是（）。
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