温度自动调节系统在投入前应做()、再热蒸汽温度动态特性试验和()。
参考答案:过热蒸汽温度动态特性试验;减温水调节门的特性试验
Most of the students are afraid of the teachers strict with students.[ ]
A.who is
B.that is
C.which are
D.who are
比较教育