[求助]请教2道题

serena_zyy

Soil temperatures in Death Valley, California, near the Nevada borer, have been known to reach 90 of degrees Celsius

这个题很明显是d错了， 可为什么我觉得c也不对阿

Mexican jumping beans are actually seeds in which contain moth harvae whose activity causes the seeds to "junp"

答案是b 是不是要改成 actual 阿， c不也应该有错吗 in which 后加完整句

[此贴子已经被作者于2005-4-7 7:43:55编辑过]

serena_zyy

再请问一下，第一个题中B选项用are known不对吗

第二个题估计是答案错了