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【简答题】
工业上以大理石和赤铁矿(Fe 2 O 3 )为主要原料可以制取B和G，其转化关系如图所示，已知D、G的主要成分为单质。试回答下列问题： （1）写出工业制取的两种物质的化学式： B 、G 。 （2）写出下列反应的化学方程式： 反应②： ； 反应③： 。
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举一反三
【单选题】Which is more powerful?
A.
Toyota Yaris
B.
Nissan Versa
C.
Honda Fit
D.
Not mentioned
【单选题】— Just now Jenny gave ten dollars to a person in trouble. — She _________ others. [ ]
A.
was always helping
B.
is always helping
C.
always helped
D.
had always helped
【简答题】英译汉。 1. be helpful to ________ 2. not… at all ________ 3. of course ________ 4. the more..., the more... ________ 5. make you...
【简答题】Nowadays more and more young people dream __________ becoming millionaires .
【单选题】The huge picture looks more beautiful _____ the blue sky.
A.
against
B.
to
C.
over
D.
Under
【单选题】What’s more, I could write on the side .
A.
a. full time
B.
b. as a secondary occupation
C.
c. with more concentration
D.
d. with enough time
【简答题】9) People with the star sign of the Scales are
bright, ________, able and confiden
【简答题】Writing:Public speaking is beneficial to confiden.
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