将在熔化过程中的冰放到0℃的恒温箱后（　　）

根据短文内容，完成任务。

      My name is Chen Lan. My home is in Gulangyu. Where is Gulangyu, do you know? It is in Xiamen. It is near the sea (海). Gulangyu is a small place(地方), but it is very nice and clean. There are no cars, buses or bikes. People only walk. So it is very quiet (安静的). My house is in the center of Gulangyu. Behind my house there is a big old tree. My grandfather tells me the tree is very old. There are many birds in the tree. We call it a “bird tree”. My house is near the sea. The sea is big and blue. There are many fish in the sea. After school, I often go there and catch fish with my friends. It is very interesting. I like eating and catching fish.

已知回归直线斜率的估计值是1.23，样本平均数$\stackrel{-}{x}=4,\stackrel{-}{y}=5$，则该回归直线方程为（ ）

慧眼辨真伪，请选出正确的读音

歧（qí  qì）____视     迄(qì  qī) ____今     矿渣(chā  zhā) ____

烟熏(shūn  xūn) ____    荣誉(rù  yù) ____     释(shì  sì) ____放

如图所示，放在水平桌面上的木块A处于静止状态，所挂的砝码和托盘的总质量为0.6kg，弹簧测力计读数为2N，滑轮摩擦不计．若轻轻取走盘中的部分砝码，使总质量减少到0.3kg，将会出现的情况是（g=10m/s²）（   ）