下列各项中,分割宰相军权的官职是()
A.秦朝的御史大夫
B.汉朝的刺史
C.唐朝的节度使
D.宋朝的枢密使
参考答案:D
The teacher couldn't make himself _____ attention to because the students were so noisy. [ ]
A. to pay
B. to be paid
C. paid
D. pay
除氧器在运行中,由于()、()、()、()都会影响除氧效果。