已知：4NH3(g)+5O2(g)=4NO(g)+6H2(g)；△H=-1025kJ/mol该反应是一个可逆反应。若反应物起始物质的量相同，下列关于该反应的示意图不正确的是
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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 |
It is often ______ that human beings are naturally equipped to speak.
| 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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