A funded investor has a short-term investment returning a 7 percent return. The borrowing costs are 20 basis points above the reference rate. If the T-bill rate is 3 percent and the LIBOR rate is 3.5 percent, what is the investor’s current profit on this investment()

A.3.3%.

B. 1.5%.

C. 3.8%.

具有热惰性小，升温快、设备简单、投资省等优点的采暖系统是（）。

A．蒸汽采暖系统

B．电辐射采暖系统

C．热水采暖系统

D．空气辐射采暖系统