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【单选题】
stabilityA.
vi.俯身;弯身 n.弯腰
B.
n.稳定,稳定性,巩固
C.
vt.节约 a.多余的
D.
vi.指定,详细说明
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举一反三
【单选题】We should work hard and ( )our parents’ expectation.
A.
live with
B.
live in
C.
live up with
D.
live up to
【简答题】某位学生接连参加同一门课程的两次考试 ,第一次及格的概率为p.若第一次及格则第二次也及格的概率也为p;若第一次不及格,第二次及格的概率为p/2.求: (1) 若至少有一次及格则他能取得某种资格 ,求能取得该资格的概率; (2) 已知第二次已经及格 ,求他第一次也及格的概率 。
【单选题】在恒容条件下化学反应：2SO 2 (g)+O 2 (g) 2SO 3 (g) ΔH='-Q' kJ·mol -1 。在上述条件下分别充入的气体和反应放出的热量(Q)如表所列： 根据以上数据，下列叙述正确的是( )
A.
在上述条件下反应生成1 mol SO 3 固体放热Q/2 kJ
B.
2Q 3 <2Q 2=Q 1
C.
Q 1 =2Q 2 =2Q 3 =Q
D.
2Q 2 =2Q 3 1
【单选题】Peter Singer seems to suggest that
A.
we should cast away our logic and respect emotion in the first place.
B.
we should not only concern about ourselves but start help each other.
C.
people who live in abundance should give a hand to those in poverty.
D.
we should cut off life support for the old to achieve the utilitarian goals.
【单选题】在恒容条件下化学反应： 2SO 2 ( g ) + O 2 ( g ) 2SO 3 ( g ) ； △ H =—QkJ·mol -1 在上述条件下分别充入的气体和反应放出的热量 ( Q )如下表所列： 容器 SO 2 (mol) O 2 (mol) N 2 (mol) Q(kJ·mol -1 ) 甲 2 1 0 Q 1 乙 1 0.5 0 Q 2 丙 1 0.5 1 Q 3 根据以上数据，下列叙述...
A.
在上述条件下反应生成 lmolSO 3 固体放热 Q/2 kJ
B.
Q= Q 1 <2Q 2 <2Q 3
C.
Q l ='2' Q 2 = 2Q 3 = Q
D.
2Q 2 = 2Q 3 < Q 1 < Q
【单选题】听力原文：W: We should write emails to our friends who live outside the country. M: Sounds like a great idea. I need to cut down on my phone bill. Q: What does the man mean? (14)
A.
He needs to make phone calls to his friends.
B.
His phone was disconnected outside the country.
C.
Using the email will decrease his telephone expenses.
D.
His friends would rather hear his sound on the phone.
【单选题】Helen Keller thought that it would be an excellent rule to live each day as if we should die tomorrow so that we would .
A.
pay less attention to the certainty of death
B.
eat, drink and be merry
C.
finish our petty tasks
D.
live our life with appreciation
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