【单选题】He way watching TV_________ I saw him
【判断题】古希腊时期就有原子说,认为世界是由最小基本单元“原子”构成的。()
【多选题】在后肢构成的关节中,关节顶角向后的关节是( )
【单选题】“利用帽子可以做什么”属于( )发散思维
【简答题】There are lots of small things we can do to ___1___ in people's lives. In 2010, 12-year-old Blare Gooch was watching TV when he saw a news ___2___ about the Haiti earthquake. On it, a young boy was cr...
【简答题】如图所示,已知F1=10kN,F2=10kN,G=30kN,F1、F2与x轴夹角中的锐角均等于45°,求F1、F2、G三个力组成的平面汇交力的合力。