1 . A group of foreign climbers, ______ love adventures and extreme sports, are determined to visit Guilin and tried a vertical journey about Karsts.

A．many of them

B．many of who

C．many of whom

D．whose many

2 . The ant runs          its own body every second, ________ it is quicker than an Olympic 100-meter runner.

A．as 108 times as long; meaning	B．108 times longer than; which meaning
C．108 times the length of; which means	D．108 times how long; meaning