By “held back” (Line 1) the author means “________” A) made to remain in the same classes B) forced to study I the lower classes C) drawn to their studies D) prevented from advancing
拍照语音搜题,微信中搜索"皮皮学"使用
参考答案:
参考解析:
知识点:
皮皮学刷刷变学霸
举一反三
【单选题】When 3p subshell are full, the electron will fill ( )