EVENTS

Aug.31-Sept.4,Laughter Bus

Cape Town, South Africa

Lovely sightseeing tour with laughter, fun and festivities. The tour departs(启程) from Cape Town towards the Garden Route, stopping at beautiful and interesting places, enjoying lunch at the seaside and sharing laughter with local communities. Cost:$800.

+277222-97454, info@laughterbus.co.za  Sept. 17-18, Laughter Yoga 2-day Certified Leader Training

Irvine, California, USA

10 am-5 pm daily at Irvine Valley College. Learn to laugh for health without the need of jokes. Start a laughter club, share laughter with elders and kids, and earn income sharing happiness. Includes practice with Jeffrey Briar. Costs: $ 295.

▪ (949)376-1939, JBriar@LYInstitute.org

Set. 30, Laughter is Serious Business Workshop

St. Albans, Hertfordshire, UK

A workshop for those who have completed Laughter Leader/Skills courses and want to get ideas and real advice on how to promote(提升) themselves. 10 am-3 pm with lunch break. Costs:￡100 (includes a￡25 DVD)

+44(0)1727-741-050, Jotte@unitedmind.co.uk Oct. 7-9, Laguna Laughter Club Mountain Retreat(静修)

Angelus Oaks, California, USA

Everyone is welcome on this three-day retreat in the pine forest of Redlands. Daily laughter yoga sessions, music, dancing, hiking, and vision-sharing. Costs:$150 (includes meals).

▪ (949)376-1241, Anne@LaughingAnne.com

Oct. 29-Nov. 5, Laughter Cruise in the Caribbean

The tour departs from Miami, Florida, USA. Daily laughter sessions, onboard programs, easy yoga classes, creating new exercises, fun and friendship! Holland America Lines. Costs: $719.

▪ (941) 349-6069, amy.ferrell@verizon.net

如图，双曲线y=$\frac{m}{x}$与直线y=kx+b交于点M、N，并且点M的坐标为（1，3），点N的纵坐标为-1．根据图象信息可得关于x的方程$\frac{m}{x}$=kx+b的解为（　　）

设$F_1,F_2$是双曲线$C:\frac{x^2}{a^2}-\frac{y^2}{b^2}=1\left(a>0,b>0\right)$的两个焦点,$P$是$C$上一点,若$\left|P{F}_1\right|+\left|P{F}_2\right|=6a,$且$△P{F}_1{F}_2$的最小内角为${30}^{°}$,则$C$的离心率为(    )