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【简答题】
Students need some ____ to apply for jobs after school. A. excitement B. members C. qualifications D. stress n>
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【单选题】下列化合物酸性次序由强至弱排列正确的是:( ) 1 Cl 2 CHCOOH 2 CH 3 COOH 3 ClCH 2 COOH 4 ClCH 2 CH 2 COOH
A.
② ＞ ① ＞ ③ ＞ ④
B.
② ＞ ④ ＞ ③ ＞ ①
C.
① ＞ ④ ＞ ③ ＞ ②
D.
① ＞ ③ ＞ ④ ＞ ②
【简答题】排列下列化合物酸性强弱的次序( )。 A .苯酚 B .苯甲酸 C .环已醇 D .水
【单选题】下列物质按照纯净物、化合物、强电解质、弱电解质和非电解质顺序排列的是
A.
纯盐酸、水煤气、硫酸、醋酸、干冰
B.
聚氯乙烯、漂白粉、苛性钠、氢硫酸、三氧化硫
C.
冰醋酸、福尔马林、硫酸钡、氢氟酸、氯气
D.
冰水混合物、胆矾、氯化钾、次氯酸、乙醇
【简答题】从强到弱排列下列化合物的酸性次序: A 苯酚 B 对甲基苯酚 C 对氯苯酚 D 对硝基苯酚 E 对甲氧基苯酚 F 2 , 4- 二硝基苯酚
【单选题】77 Since risk is associated with most projects, the best course of action is to:
A.
cover all project risks by buying appropriate insurance
B.
ignore the risks, since nothing can be done about them and move forward with the project in an expeditious manner.
C.
avoid projects with clear and present risks
D.
eliminate all known risks prior to the execution phase of the project
E.
identify various risks and implement actions to mitigate their potential impact
【简答题】The F．P．A．doesn't cover partial loss of the nature of particular average.
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