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【单选题】
历史和现实昭示我们，人才的命运往往和时代的命运、国家的命运紧密相连，而今,()是决定当代中国命运的关键，也是决定人才命运的关键。A.
:改革开放
B.
:中华民族伟大复兴
C.
:“两个一百年”奋斗目标
D.
:国际、国内环境
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知识点：
皮皮学刷刷变学霸
举一反三
【单选题】在1mol/L的H2SO4溶液中，φΘ'ce4十/ce3十=1.44V；φΘ'Fe3十/Fe2十=0.68V；以Ce4十滴定Fe2十时，最适宜的指示剂为（ ）
A.
二苯胺磺酸钠（φΘ'|n=0.84V）
B.
邻苯胺基苯甲酸（φΘ'ln=0.89V）
C.
邻二氮菲—亚铁（φΘ'|n=1.06V)
D.
硝基邻二氮菲—亚铁（φΘ'|n=1.25V)
【单选题】________ are good friends. We often play together. [ ]
A.
Jill and I
B.
I and Jill
C.
Jill and me
D.
Me and Jill
【简答题】已知随机变量 ξ～B(2， 1 3 ) ，η=3ξ-1．则Eη的值为______．
【单选题】Jill: Hi, Jane, this is Jill. Do you have time to talk? Jane: Hi, Jill, ______. I was just watching TV.
A.
so what
B.
no doubt
C.
some time
D.
sure
【单选题】Here are things Jill SHargaa describes as awesome. Choose the reason she gives. "the wheel"
A.
helps you to move things
B.
rolls everything to your home
【单选题】Li Mu picks ______ corn than ______. [ ]
A.
much more, Jill's
B.
many more, Jill
C.
much more, Jill
【单选题】“I_______ a teacher, you_______ a student, your father_______ a worker', Mrs. Wang says to Jill.
A.
am; is; are
B.
is; am; are
C.
am, are, is
D.
am; is; is
【单选题】用铈量法测定铁时,滴定至 50% 时的电位是 ( ) (已知 Eθ’Ce4 + / Ce3 + =1.44v , Eθ’Fe3 + / Fe2 + =0.68v )
A.
1.44V
B.
1.06V
C.
0.86V
D.
0.68V
【单选题】The advertisement says this material doesn't ______ in the wash, but it has.
A.
contract
B.
shrink
C.
slash
D.
dissolve
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