【简答题】计算: (1)-2 3 ÷ 4 9 ×(- 2 3 ) 2 (2)[1-(1-0.5× 1 3 )]×[2-(-3) 2 ]. (3)-|-3+ 2 1 3 |-|- 1 3 | 2 +(- 1 3 ) 2 ×(-1) 9 ×(-2) 3 (4)-2 2 ×(-3.14)-3.14×(- 1 2 )×(-6); (5)( 7 4 - 7 8 - 7 12 )÷(- 7 8 )+(- 8 3 ).
【简答题】Anna had a scary experience last night. Listen to her story and c omplete the sentences with the verbs you hear:
【简答题】计算下列各题: (1) 3×(-2)-(-1)÷ 1 3 ×(-3) (2)-7× (- 22 7 ) +26× (- 22 7 ) +2× 22 7 (3) - 1 3 -(1-0.5)× 1 3 ×[2- (-3) 2 ] (4) (-2 ) 2 -(3-5)- 4 +2×(-3) .
【简答题】卫星通信的两个特点,由于长距离传输,在两个收发的地面站之间会有 ______ 的传输延迟。其次______ 。
【单选题】具有‘’寒热并用,辛开苦降,补泻兼施“配伍特点的方剂是
【简答题】可是,母亲并不软弱。父亲死在庚子闹“拳”的那一年。联军入城,挨家搜 索财物鸡鸭,我们被搜两次。母亲拉着哥哥与三姐坐在墙根,等着“”进门, 街门是开着的。“”进门,一刺刀先把老黄狗刺死,而后入室搜索。他们走后,母亲把破衣箱搬起,才发现了我。假若箱子不空,我早就被压死了。皇上跑了,丈夫死了,来了,满城是血光火焰,可是母亲不怕,她要在刺刀下,饥荒中,保护着儿女。北平有多少变乱啊,有时候兵变了...
【单选题】Look at the graphs and c omplete the sentences with suitable words . 1 The number of users ______________ rapidly by 3,500% per year.
【简答题】(1)计算 ( 2 +1 )( 2 -1 )- ( 3 -2 ) 2 (2)解方程 (x+3) 2 =3x+13.