室内沥粉描金的锥型铁管高为15厘米,底面直径至少为()。
A、2-3厘米
B、0.5-1厘米
C、7-10厘米
D、5-8厘米
参考答案:A
In the following two hours he was _____ the performance, because it turned out to be as wonderful as he had expected.[ ]
A. tired of
B. absorbed in
C. annoyed with
D. disappointed with
桥梁评定分为哪两种?