驾驶机动车上坡时，在将要到达坡道顶端时要加速并鸣喇叭。
参考答案：错
The noise outside was _______. [ ]
A. too irritating
B. so irritating so his speech was hardly audible
C. so irritating that his speech was hardly audible
D. so irritating enough that his speech was hardly audible
利用期货市场和现货市场之间的价差进行的套利行为，称为( )。
A．跨期套利 B．跨商品套利C．跨市套利 D．期现套利
