读图“日本工业分布图”，回答下列各题。
There is nothing ambiguous ___ all illegal immigrants should be sent back across the border immediately.
平面上有三点，经过每两点作一条直线，则能作出的直线的条数是（ ）
— Sorry. I returned it to the library just now. Maybe it is still ____.
遗传信息的传递过程中要遵循“碱基互补配对原则”．下列表示转录过程的是（ ）
模板
A G C U
A G C T
产物
U C G A
T C G A
选项
A
B
C
D
