正常生产中焚烧炉燃料油压力调整（）。
A、应匀速
B、是不允许的
C、应缓慢
D、快慢结合
参考答案：C
证明“造物主”即神根本没有存在的必要，使人的思想发生跃进的学说是 [ ]
A、相对论
B、太阳中心说
C、生物进化论
D、牛顿力学
The teacher， together with the students, _ __ discussing Reading Skills that ______ newly published in America.
A．are; were
B．is; were
C．are; was
D．is; was
