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【判断题】
粽子是端午节的传统节日食品,传说是为了祭奠投江的屈原;A.
正确
B.
错误
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【简答题】A teddy bear from Cumbria is launching into space to raise cash for charity(慈善). Terence, an experienced traveller who has been to Iraq, will be the guest of honour on aviation(航行) legend Burt Rutan’s...
【单选题】在两样本均数推断两总体均数差别的t检验中,无效假设是
A.
两总体均数相等
B.
两总体均数差异有统计学意义
C.
两样本均数相等
D.
两两总体均数差异无统计学意义
E.
两总体均数不等
【单选题】The experience of foreign countries is worth learning from and taking for reference.
A.
learning and reference.
B.
our learning and our reference
C.
our learning from and taking for reference
D.
our learning and make reference to
【单选题】由两个或以上的指标构成的健康复合指标，考虑了早死、残疾和疾病状况对健康的影响。一人群一定时期内(通常为1年)在目标生存年龄(通常为70岁或出生期望寿命)以内死亡所造成的寿命减少的总人年数指的是
A.
减寿人年数
B.
无残疾期望寿命
C.
活动期望寿命
D.
伤残调整生命年
E.
健康期望寿命
【简答题】HXD3型电力机车冷却系统主要包括（）系统冷却、主变流装置系统冷却、牵引电动机冷却、辅助电源装置冷却、空气压缩机的冷却及包括卫生间通风及车内换气等。
【单选题】We can learn from the text that ______.
A.
Gorillas in the Mist was based on Fossey's experiences
B.
Lowland gorillas live longer than mountain gorillas
C.
King Kong showed us that a gorilla is admirable
D.
Diane Fossey was murdered by a gorilla
【单选题】______ it's quite a good plan, but it's difficult to carry it out.
A.
By the way
B.
In a way
C.
In no way
D.
In the way
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