NB/T47013.3-2015标准规定,超声检测时,提高6dB。
参考答案:错
Susan's strong love for her country is ________ in her recently published poems.[ ]
A. relieved
B. reflected
C. responded
D. recovered
下列部件中不属于燃烧器的是()。
(A)风机马达
(B)大小火开关
(C)风门
(D)油电动阀