期货交易所在期货公司没有保证金或者保证金率低于8％的情况下，允许期货公司开仓交易或者继续持仓，应当认定为透支交易。（）
参考答案：错
To take exercise indoors is less ________ than in the open air.[ ]
A. fortunate
B. dangerous
C. safe
D. beneficial
There is something wrong with my ________. I can’t hear you clearly at all.
A．eyes
B．arms
C．feet
D．ears
