It is hard to make a living nowadays and since we are slightly _______, the amount of your weekl
A.
21. It is hard to make a living nowadays and since we are slightly _______, the amount of your weekly pocket money has to ______ A.with debt; be reduced
B.
in debt; be cut down
C.
with debts; cut down
D.
in debts; be cut down
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【简答题】请你选用如图所示的实验器材,探究石块下沉的条件: (1)你可从中选用的器材有 。 (2)你设计的实验步骤为: ① 。 ② 。 ③通过比较石块的重力和石块受到的浮力,可知物体下沉的条件是 。