There is a big zoo in our city. In the zoo you can see many animals. Look! There is a big ____monkey there. Next to the monkey, there are two ____They are from Africa. They like____in the water. Look! That is a panda. It is two years old. It is from Sichuan, China. It ____bamboo and other plants. There is also a tiger in the zoo. ____favourite food is meat.

近年来，国内网站纷纷开设“两会直通车”“网上大会堂”等论坛，希望广大人民向决策机关反映意见、提出建议。“网上论坛”的开设有利于（    ）

①促进决策科学化和民主化

②保障公民的有序政治参与

③拓宽民意反映渠道

④扩大公民的民主权利

如图所示，一个质量m=20kg的物块，在F=60N的水平拉力作用下，从静止开始沿水平地面向右做匀加速直线运动．物块与地面间的动摩擦因数µ=0.10．取重力加速度g=10m/s²．