十八届三中全会公报新鲜出炉。细品报告中的关键词,我们发现公报向世人展示一幅大有前途的发展蓝图。
在曲线fx=x3+3x2+6x-10的所有切线中,斜率最小的切线方程为 ( )
A
The Cartoon Museum
Come and see the best of British cartoon art. There is something for everyone—including popular cartoon characters and a great shop full of funny books and cards.
Price: £4.00
Opening times
Tuesday – Saturday 10:30-17:30
Sunday 12:00-18:00
Cox's Hotel
Tel: 01789 404600
E-mail: info@coxshotel.co.uk
Website: www.coxshotel.co.uk
Coffee shop: 9:00am-6:00pm
Tea room: 10:30am-5:30pm
Pub (酒吧): 12:00- midnight
(1:30am on Friday/Saturday)
Stratford Butterfly(蝴蝶)Farm
Tel: 01789 299288 Price Opening Hours
E-mail: sales@butterflyfarm.co.uk £5.50 adult Summer 10am-6am
Visit: www.butterflyfarm.co.uk £4.50 child Winter 10am-4:30pm
£16 family
如图为小明做“测量物体运动的平均速度”的实验过程,图中的停表(停表每格为1秒)分别表示小车通过斜面A、B、C三点的时刻,B点是全程AC的中点,关于小车通过上、下半段路程所用的时间和平均速度的关系,正确的是
(5分)在探究“导体产生的热量与导体两端的电压、导体的电阻和通电时间关系”的实验中,实验装置如图所示,两烧瓶A、B中煤油质量相等,两只温度计的示数相同,电阻丝的阻值R1>R2.
水和无机盐可进入细胞,而有害的物质不能进入细胞,这主要是因为( )