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【简答题】
试翻译下面一段话。切忌抄袭,与直接使用翻译软件。Describe the paper clips as a material that is not used for energy and cannot be excreted. Redistribute the paper clips, giving each student five to ten clips. Repeat the procedure for passing clips from the lowest trophic level to the highest trophic level, except this time each higher trophic level must collect all clips from at least three people. Since the clips are not used for energy and cannot be excreted, all clips are passed from one row to the next. Since each higher level must collect from three people, a food chain pyramid will be formed, with each person in successively higher levels holding more and more paper clips. Have each trophic level (row) remember how many clips they were holding before passing them on. At the top of the food chain will be one person holding all of the paper clips that were distributed to the rows below.
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【判断题】已知x = 'hellow world.'.encode(),那么表达式x.decode('gbk')的值为'hellow world.
A.
正确
B.
错误
【单选题】已知三相电路的对称星形负载阻抗Z=165+j84 欧姆,端线阻抗为2+j 欧姆,中性线阻抗为1+j 欧姆,线电压380V。则负载端的电流大小为
A.
1.73
B.
1.41
C.
1.17
D.
0.92
【判断题】已知x = 'hellow world.'.encode(),那么表达式x.decode('gbk')的值为'hellow world.'。
A.
正确
B.
错误
【单选题】成人重度贫血其血红蛋白的范围应是
A.
≤90g/L
B.
60~90g/L
C.
30~60g/L
D.
≤30g/L·
E.
≤60g/L
【单选题】小虫在平面上爬,若小虫不可看做质点,则它有几个自由度?
A.
1
B.
2
C.
3
D.
4
【单选题】类似种子的干果的农作物是
A.
豆类和棉花
B.
小麦和玉米
C.
马铃薯和甘薯
D.
胡麻和油菜
【单选题】成人重度贫血其血红蛋白的范围应是
A.
≤90g/L
B.
90-60g/L
C.
60-31g/L
D.
≤30g/L
E.
≤60g/L
【单选题】114客房接待服务过程的第一个环节是
A.
客人到达前的准备工作
B.
客人到店的应接工作
C.
客人住店的服务工作
D.
客人离店的结束工作
【简答题】(6.5分)去年秋末直至今年春初的连续干旱使我市大部分地区受灾严重,农作物面临大量减产或绝收。请回答: (1)水是生命之源,在______________中,有机物相互作用形成了最初的生命,即原始生命诞生于水,生物体的生命活动离不开水。 (2)农作物在缺水初期叶片气孔会自动关闭,以减弱 作用。 (3)干旱影响春播,从种子萌发的条件分析,是因为____________________________...
【多选题】以下哪些原因可以引起机油压力过低:
A.
机油泵磨损
B.
发动机温度过高
C.
机油限压阀损坏
D.
曲轴与轴承配合间隙过小
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