某温度下，体积一定的密闭容器中进行如下可逆反应：
X(g)+Y(g) 
Z(g)+W(s) △H>0下列叙述正确的是
| A．加入少量W，逆反应速度增大 |
| B．当容器中气体压强不变时，反应达到平衡 |
| C．升高温度，平衡逆向移动 |
| D．平衡后加入X，上述热化学方程式中的△H增大 |
相关试题
Progress______ so far very good and we are sure that the work will be finished on time.
| A．was | B．had been | C．has been | D．will be |
Charles was alone at home, with_______ looking after him.
| A．someone | B．anyone | C．not one | D．no one |
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| A．said | B．to say | C．saying | D．being said |
I can’t leave. She told me that I ______ stay here until she comes back.
| A．can | B．must | C．will | D．may |
—— ______ , as a matter of fact
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