关于连词的两个问题...Artificial diamonds are made in laboratories ___

关于连词的两个问题...
Artificial diamonds are made in laboratories ____real diamonds are formed in nature
A.so does B in much the same way that
C just like D the same as
同学说 B,因为前后俩个句子要有连接词才行的.但不知如何翻译?呵呵
还有一个疑惑就是连词的话为什么DC
2.Wild animals grow a thicker coat of hair in winter ____man puts on more clothes to save energy
A,just so B just as C likewise D the same way
这里选B是什么后面部分有man这个主语了,所以不需要用连接词,那我又觉得为什么DC 为什么不可以用?呵呵 麻烦详解 难道只有B 不是连词?
汗