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【单选题】
What does the woman plan to do next?A.
Fax information to the woman
B.
Deliver reports via courier
C.
Finish a report by the afternoon
D.
Telephone the courier's office
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举一反三
【单选题】The writer feels long bus rides are like TV shows because
A.
the commercials both on TV shows and on billboards along the road are fun.
B.
they both have a beginning, a middle, and an end, with commercials in between.
C.
the drivers are always reckless on TV shows just as they are on buses.
D.
both traveling and watching TV are not exciting.
【简答题】假定 5岁男童的体重服从正态分布,平均体重=19.5(kg),标准差=2.3(kg)。 (1)随机抽查一5岁男童的体重,计算概率: 1其体重小于16.1 kg 2其体重大于22.9 kg 3其体重在14.6 kg到23.9 kg之间 (2)试找出最重的5%、10%、2.5% 5岁男童的体重范围。
【简答题】As regards putting an end to people's littering in the forest, the writer feels_________ . [A] confused [B] doubtful [C] worried [D] hopeful
【单选题】假定5岁男童的体重服从正态分布,平均体重19.5kg,标准差2.3kg,则95%的医学参考值范围是
A.
19.5+1.96*2.3
B.
19.5+2.58*2.3
C.
19.5±1.96*2.3
D.
19.5±2.58*2.3
【简答题】___________ 被称为是科学管理之父
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