单项选择题

A．not try
B．try
C．not to try
D．to try
<上一题 目录 下一题>
热门 试题

单项选择题
When did Lincoln become president
A．In 1858.
B．In 1850.
C．Upon Douglas’ death.
D．Shortly before the Civil War began.
填空题
At a refinery the crude oil is ______ into its various parts.
相关试题