单项选择题


A．while
B．whereas
C．if
D．although
<上一题 目录 下一题>
热门 试题

单项选择题
To produce artificial noses for practical use, it is essential______.
A．to develop microchips with thousands of odor receptors
B．to invent chips sensitive to various chemicals
C．to design a computer program to sort out smells
D．to find chemicals that can alter the electrical current passing through
单项选择题
The word logged (Line 4, Para. 5) most probably means ______ .
A．preset
B．entered
C．processed
D．simulated
相关试题