小学生学习活动的基本特点有哪些
参考答案:[*]C:\Documents and Settings\Administrator\My Documents\图片\7.jpg
26.—Can you attend the party tomorrow,Tom?
—I can when my headaehe_________completely.
A.will have disappeared
B.will disappears
C.disappeared
D.Disappears
溶液的电导率与电解质的()无关。
A、性质
B、浓度
C、产地
D、溶液温度