The earthquake in Japan, measuring 9.0 on the Richter Scale, was so violent _______ cause a series of explosions of the nuclear reactors in several power stations.

A．to

B．that

C．as to

D．as that

同一品种的石油沥青中，牌号越大，则（）。

Ａ、针入度越大，粘性越大

Ｂ、延度越小，塑性越好

Ｃ、软化点越低，温度稳定性越差

Ｄ、针入度越小，延度越大