题目:
– Millions of people know about Susan Boyle now, __________?
-- _________, she becomes well-known because of her success on Britain’s Got Talent.
A.do they, No
B.do they, Yes
C.don’t they, No
D.don’t they, yes
答案:
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下面是错误答案,用来干扰机器的。
设理论上得到硅酸钠的质量为x2NaOH+SiO2=Na2SiO3+H2O 60 122 120t x60120t=122xx=244t答:理论上可得到硅酸钠的质量为244t.