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【单选题】
当物质的基本单元为下列化学式时,它们分别与NaOH溶液反应的产物如括号内所示,下列何种物质与NaOH溶液反应时的物质的量之比为1:( )A.
H3PO4(Na2HPO4)
B.
NaHC2O4、H2C2O4(Na2C2O4)
C.
H2C8H4O4(Na2C8H4O4)
D.
(RCO)2N(RCOONa)
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【单选题】Urban Energy Planning for a Sustainable Environment The People's Republic of China (China) is the world's most populous country and the second largest energy consumer, with a rapid economic growth tha...
A.
Y
B.
N
C.
NG
【简答题】不等式3x-7≥2的解集是______．
【单选题】According to the passage, people in China ______ .
A.
are more spiritually aware than people in Western countries
B.
are less spiritually aware than people in Western countries
C.
would like to be more spiritual
D.
are becoming less spiritual
【单选题】People in different places use different body language, for example, in China, people usually()their heads to show their disagreement.
A.
nod
B.
shave
C.
wave
D.
shake
【单选题】Ihr ______ in China! Wie _____ es?
A.
waren...war
B.
wart...war
C.
waren...wart
D.
ware...waren
【简答题】若不等式（2m-3k）x＞7m-5k的解集是x＜ 2 3 ，则不等式（7m-3k）x＞2m-5k的解集是______．
【单选题】People in western countries celebrate ______ Christmas, while people in China observe ______ Spring Festival. [ ]
A.
the; the
B.
/; /
C.
the; /
D.
/; the
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【单选题】Ihr ______ in China! Wie _____ es?
A.
waren...war
B.
wart...war
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waren...wart
D.
ware...waren
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