、长沙旧有乌程侯庙,乌程侯即孙坚,对否?
参考答案:对
改错。
①What's this? It’s a eraser.
A B C
②Is this you ruler?
③Excuse I. Are you Jim?
④This is my a book.
⑤What's color is your book?
提纯醛和酮时,不能用下列哪组试剂
A.I2和NaOH溶液
B.饱和NariS()3溶液
C.2,4-二硝基苯肼
D.氨基脲溶液
E.以上都行