问题
选择题
Lucy's aunt is a worker, and she makes _______ in a _______ factory. |
A. shoes; shoes B. the shoes; shoe C. shoes; shoe D. shoe; shoes |
答案
答案:C
Lucy's aunt is a worker, and she makes _______ in a _______ factory. |
A. shoes; shoes B. the shoes; shoe C. shoes; shoe D. shoe; shoes |
答案:C
下图装置,若将X和Y同时通入Z中,瓶中肯定变浑浊的是
X | Y | Z | |
A. | O2 | H2 | 澄清石灰水 |
B. | H2 | HCl | AgNO3溶液 |
C. | HCl | CO2 | KOH溶液 |
D. | CO2 | N2 | BaCl2溶液 |