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【单选题】
关于血压测量,描述正确的是(   )
A.
自测血压一般会高于诊室血压
B.
血压测量主要有3种方式,即诊室血压,自测血压和动态血压
C.
因是大夫测的血压,因此诊室血压准确
D.
使用水银血压计测量血压,袖带下缘应在肘弯线下
E.
自测血压接近动态血压24h平均水平
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举一反三
【单选题】The car _____ got four wheels. [     ]
A.
have
B.
has
C.
is
【简答题】用双线桥表示下列反应中得失电子的情况,并指明氧化剂、还原剂、氧化产物、还原产物: 3FeO + 10HNO 3 === 3Fe(NO 3 ) 3 + NO↑ + 5H 2 O (     ) (     )        (     )    (     ) 其中,氧化性:__________ > ___________ ; 还原性:___________ > ___________
【单选题】Conversations 1~1
A.
B.
C.
D.
D
【单选题】conversations 1
A.
growing population.
B.
packaging materials.
C.
changed eating habits.
D.
lower production cost.
【单选题】Conversations 1^1
A.
B.
C.
D.
D
【单选题】Conversations1'1
A.
B.
C.
D.
D
【单选题】conversations1
A.
The English grammar is quite easy.
B.
It is greatly influenced by French.
C.
It could be pronounced easily.
D.
It is attractive to English beginners.
【简答题】(12分)用双线桥表示下列反应中得失电子的情况,并指明氧化剂、还原剂、氧化产物、还原产物: 3FeO  +  10HNO 3 ='== ' 3Fe(NO 3 ) 3 +  NO↑  +  5H 2 O (   ) (   )   (     ) (   ) 其中,氧化性:__________ > ___________ ;还原性:___________ > ___________
【单选题】Short conversations 1
A.
They teach compet i t i on as an essential driving skill.
B.
They need more supervision over the high charges and bribes.
C.
They are too few to meet the rising demand.
D.
They have a demand for more competent instructors.
【简答题】(1)写出下列反应的化学方程式:钠在空气中加热______,过氧化钠和水反应______ (2)用双线桥法表示下列氧化还原反应中电子转移的数目,并指出氧化剂.MnO 2 +4HCl(浓) △ . MnCl 2 +2H 2 O+Cl 2 ↑  氧化剂______.______.
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