下列各项中没有成形细胞核的是 （     ）。                                  

A．酵母菌和曲霉　

B．青霉和大肠杆菌　

C．根瘤菌和结核杆菌

D．蘑菇和酵母菌

—Who is the man talking to Mr. Smith, the host of Shanghai TV?

— A local journalist ______ the earthquake and Tsunami which hit Japan on 11th March.

A．covers

B．is covering

C．covered

D．covering