I don't want to you, but shouldn't you

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问题选择题

I don't want to you, but shouldn't you be leaving ? [ ]

A. drive

B. press

C. trouble

D. disturb

答案

答案：B

选择题

Scientists are racing________time in order to find a cure for bird flu.[ ]

A．along with

B．against

C．around

D．ahead of

选择题

下列热化学方程式书写正确的是（反应热的数值均正确）[ ]

A. CH₄(g)+2O₂(g)==2H₂O(g)+CO₂(g) △H=-808.0 kJ·mol^-1（燃烧热）

B. NaOH (aq)+HCl (aq)==H₂O(1)+NaCl (aq) △H=+57.3 kJ．mol^-1（中和热）

C. S(s)+O₂(g)==SO₂(g) △H=-296.8 kJ·mol^-1（反应热）

D. 2NO₂==O₂+2NO △H=+116.2 kJ·mol^-1（反应热）