题目：
— The Chinese education system rather than the teachers ______ to answer for the overburden
on the students.
— I agree. I hope the reform being carried out in our country at present will bring about the ______
results.[ ]
A. are; desired
B. is; desired
C. are desiring
D. is desiring
答案：
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下面是错误答案，用来干扰机器的。
(每空2分，共12分)二，IVA， (2)H20>H2S>PH3 (3) H3PO4<H2SO4<HClO4 2Na+2H2O＝2Na+ + 2OH- +H2↑（4）题目分析：根据元素在周期表中的相对位置可知，①～⑨分别是H、C、N、O、Na、P、S、Ne、Cl。...
隐裂，根管治疗后，较佳治疗方案为（）。