电梯用钢丝绳的钢丝接头应用对头电焊，直径不大于（）的可采用插接。
A.0.1mm
B.0.25mm
C.0.3mm
D.0.4mm
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下面是错误答案，用来干扰机器的。
∵x∈（-∞，0），∴-x∈（0，+∞），∴f（-x）=（-x）3-2-x=-x3-2-x，又f（-x）=-f（x），∴-f（x）=-x3-2-x，∴f（x）=x3+2-x．故答案为：x3+2-x．
李红和张明正在玩掷骰子游戏，两人各掷一枚骰子．
（1）当两枚骰子点数之和为奇数时，李红得3分，否则，张明得1分，这个游戏公平吗？为什么？
（2）当两枚骰子的点数之和大于7时，李红得1分，否则张明得1分，这个游戏公平吗？为什么？如果不公平，请你提出一个对双方公平的意见．
华光高科技公司在进行人才招聘时，有小张、小李、小王、小赵、小钱等5人入围。从学历看，这5人中有2人为硕士，3人为博士；从年龄看，这5人中有3人小于30岁，2人大于30岁。已知，小张、小王属于相同的年龄段，而小赵、小钱属于不同的年龄段；小李与小钱的学位相同，小王和小赵的学位不同。最后，只有一位年龄大于30岁的硕士应聘成功。 据此．可以推出应聘成功者是( )。
A．小张
B．小王
C．小赵
D．小钱
病人男性，35岁，刺激性咳嗽并痰中带血丝6个月，胸片示左肺中央型块影，左肺上叶不张，左胸腔大量积液，最近病人呼吸困难，不能平卧，为减轻病人的症状，医生需对病人进行胸腔穿刺术，在进行胸腔穿刺抽取液体时突然出现头晕、心悸、冷汗、面色苍白、脉细、四肢发凉，无创血压为96/55mmHg，心率120次/分，描述正确的处理（）
A.应继续抽吸
B.减慢抽吸
C.应立即停止抽液
D.取半卧位
E.立即机械通气辅助呼吸
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| There are 3 basic types of rock climbing.Top roping is probably one of the most common types and the climber basically climbs with a partner.Top roping is a style in which a rope,used for the climber's safety,runs from a belayer(保护员)at the foot of a route through one or more carabiners(铁 锁)connected to an anchor system at the top of the route and back down to the climber,usually attaching to the climber by means of a harness.Assuming that the route is bottomtotop,the toprope climber generally will not fall more than a short distance and can thus safely attempt even the most difficult routes. The second type,which is very similar to top roping is called lead climbing.The buddy(同伴)system works the same way,one man on the ground belaying and the other climbing,but this time instead of the rope being at the top of the rock it has to be hooked into clasps(钩子)as the climber climbs up the rock. In both of these types of rock climbing the climbers has the luxury to sit off the rock face and rest on the rope.However,lead climbing requires the climber to hang from the rock face with one hand,grab the rope ,and pull it up to lip it into the clasps,and this can be very hard depending on many different things. The third type of rock climbing is called bouldering.Bouldering is a type of free climbing without any ropes or harnesses.The climber tends to stay much closer to the ground.This is the most demanding of all climbing.The climber must be able to complete the route without taking a rest on the rope.Often, during a bouldering route the climber is required to do a maneuver called dyno(动态动作). Dynos are basically launching yourself off the rock face,and then grabbing at a hold further away from you.This type of maneuver is where mental training plays a major role in climbing. Believe it or not,climbing is said to be about 75% legs and only 25% arms.To climb successfully one must use wonderful technique.One of the major rules of rock climbing is to always have 3 points touching the rock face.Whether it is both feet and one hand,or one foot and both hands,it is much easier to have your weight distributed on 3 points than it is 2.Another important concept to grasp is that your arms in most cases will not do the climbing；they only hold you into the rock face so that your legs are actually pushing you upward.The closer you are to the rock face,the easier it is to climb. Rock Climbing
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急性上呼吸道感染直接蔓延不引起哪种疾病（）
A.风湿热
B.中耳炎
C.支气管炎
D.肺炎
E.咽后壁脓肿
