—We are going to have a picnic tomorrow. What's the weather like, Mike?

—Why not  ______ the radio and listen to the weather report?　　　　 　[ ]

A. turn on　　

B. turn off　 　

C. take away　

D. find out

人感染钩虫是由于

A．钩虫杆状蚴钻入皮肤

B．误食了钩虫卵

C．钩虫丝状蚴钻入皮肤

D．误食了感染性钩虫卵

E．误食钩虫成虫