If you want to make your friend not be too nervous before the final exam, you say:_______.

A． the early bird catches the worm

B． Many hands make light work

C． Too many cooks spoil the broth

D． Don’t put all your eggs in one basket

撑一把雨伞行走在雨中，如图所示，一阵大风吹来伞面严重变形，因为伞上方的空气流速大于下方的空气流速，向上的压强______（填“大于”或“小于”）向下的压强；若伞受到的所有力同时消失则伞将______（填“静止”、“下落”或“向右做匀速直线运动”）．