【单选题】Aunt Mary is crazy about shopping. She must be snapping up the bargains in the department store during such a sale, ?
【单选题】按照有效数字的运算法则,下列运算错误的是
A.
255.47+5.6+0.06546=261.1
B.
90.55-8.1-31.218=51.23
【简答题】指出下列运算的错误,并计算出正确的结果:
【简答题】Mary Jones is the manager of the and she is crazy about everthing .
【简答题】Mary is crazy about (listen to/ listening to ) music.
【单选题】Mary is crazy ____ English songs.
【判断题】昆虫的眼分为单眼、复眼。一般幼虫只有单眼,没有复眼;成虫和若虫既有单眼又有复眼。