RNA转录的特点()。
A. 转录具有不对称性
B. 转录有特定起始和终止位点
C. 转录不需要引物
D. 转录具有连续性和单向性
请判断括号中的成分:(Because the pictures are made to be seen, ) too much emphasis is apt to be placed upon seeing.
A. 定语从句
B. 状语从句
C. 表语从句
D. 同位语从句
________ the pictures are made to be seen, too much emphasis is apt to be placed upon seeing.
A. What
Because
C. Because of
D. That
请判断括号中的成分:(Whether you like it or not), you must read over the book.
A. 状语从句表让步
B. 状语从句表原因
C. 状语从句标条件
D. 状语从句表结果