凹的眼睛后眼角(),应画()眼影;凸的眼睛后眼角(),应画()眼影。
参考答案:较深;浅色;浅;深色
To my surprise, he turned up in the room without ___.
A.noticed
B.being noticed
C.noticing
D.to be noticed
埋地聚乙烯管道连接采用哪种方式?