Internet shopping will really _____ when people make sure that it is safe. [ ]

A. take off

B. take up

C. set off

D. set up

跟腱由下列哪组肌腱联合组成（）。

A.腓骨长肌，比目鱼肌

B.腓肠肌、腓骨长肌

C.腓骨短肌、比目鱼肌

D.比目鱼肌、腓肠肌

E.腓肠肌、腓骨短肌