夜空中移动的云朵后面的月亮本来是不动的,但看起来月亮在移动,而云朵是静止的,这中现象叫做()
A.动景运动
B.自主运动
C.诱导运动
D.真动知觉
参考答案:C
儿童期最常见的泌尿系统恶性肿瘤是( )。
A few days after the interview, I received a letter _____ me admission to the university. [ ]
A. offering
B. offered
C. having offered
D. to be offered