–Who should be responsible for the accident?

-The boss, not the workers. They just carried out the order                  .

A．as told

B．as are told

C．as telling

D．as they told

玻璃缸的水中有金鱼，用细棍轻轻敲击鱼缸的上沿，金鱼立即受惊，这时金鱼接收到声波的主要途径是[ ]

A．鱼缸——空气——水——金鱼

B．空气——水——金鱼

C．鱼缸——水——金鱼

D．水——金鱼