こんどの けんきゅうかいには ぜひ しゅっせき（ ） と おもっています。
A．して
B．しよう
C．する
D．します
参考答案：B
A．Washington, Adams arid Jefferson are most famous in the history of the United States.
B．Washington, Adams and Jefferson had many different interests.
C．Washington, Adams and Jefferson returned home after they were retired.
D．Washington, Adams and Jefferson were the first three Presidents.
压滤机工作时的压力为（）MPa。
A、0.4—0.8
B、1--2
C、2--3
