用“KnockOut 2”进行抠图时,凡是被大头针点了的部分,处理时保持不透明状态。()
参考答案:对
常用于制作形状复杂、力学性能要求较高的零件的钢是()。
A.35
B.T7
C.铸钢
D.45
Sound changes may include the loss of a sound or sounds. The so-called apocope refers to the omission of a vowel segment________. ( )
A.in word-initial
B.in word-middle
C.in word-final
D.in syllable-initial