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【判断题】
柴油机具有压缩比大,热效率高,经济性能和排放性能都比汽油机好等优点。
A.
正确
B.
错误
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皮皮学刷刷变学霸
举一反三
【简答题】突发事件处置时需坚持以( )为本原则。
【单选题】Which one of the following is not the purposes of a conclusion?
A.
To reduce the writing to a suitable length.
B.
To remind the readers of the main points.
C.
To signal the end of the writing.
D.
To leave the readers with the final thoughts on the topic.
【单选题】下列化合物中,属于共轭二烯烃的是
A.
CH2=CHCH=CHCH3
B.
H2C=CHCH2C≡CH
C.
CH2=CH2
D.
H2C=C(CH3)CH2CH=CH2
【单选题】供细菌学检查的病料,可放入哪种化学药品中保存。( ) P253
A.
10%福尔马林
B.
30%甘油生理盐水
C.
70%酒精溶液
D.
2%氢氧化钠溶液
【判断题】To leave the readers a deeper impression, the concluding paragraph may add some new ideas.
A.
正确
B.
错误
【单选题】突发事件处置时需坚持以( )为本原则。
A.
B.
C.
D.
【单选题】供细菌学检查的病料,可放入哪种化学药品中保存。( )
A.
10%福尔马林
B.
30%甘油生理盐水
C.
70%酒精溶液
D.
2%氢氧化钠溶液
【单选题】What do you do to【1】care of the books in your library? Some of the most collectors【2】to read the books in their collection【3】the books remain in mint【4】. Others buy two copies of a book they【5】one, an...
A.
put
B.
get
C.
take
D.
give
【单选题】病人,女,81岁、因高血压性脑出血后肢体擁痪,生活无法自理。住院期间护土给了50%乙醇按摩受压部位皮肤,其目的是:
A.
降低体温
B.
减轻局部受压
C.
促进血液循环
D.
增强机体抵抗力
E.
保持皮肤清洁干燥
【单选题】下列化合物中,属于共轭二烯烃的是
A.
CH 2 = CHCH 2 CH = CH 2
B.
CH 2 = CH - CH = CH - CH = CH 2
C.
CH 2 = CH - CH = CH 2
D.
CH 2 = C = CHCH 3
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