太平天国领导人曾表示，“平定时不惟英国通商，万国皆通商……害人之物为禁”，又强调“不得毁谤国法”。这些表明太平天国主张

①自由通商 ②严禁鸦片 

③发展工业 ④捍卫主权

A．①③④

B．②③④

C．①②④

D．①②③

--Please ___________ the machine before you start it. Maybe it’s difficult for you to make it move.

--OK. I’ll try my best.

A．look up

B．look over

C．look for

D．look through