销售渠道的结构有三种形式，（）渠道最短。 A.生产者→零售商或批发商→消费者 B

经过点（2，-1），且与直线x+y-5=0垂直的直线方程是______．

Yellowstone Tour & Travel has been helping people plan their Yellowstone Park vacations for 25 years. We are a one-stop shop (一站式服务点) for all Yellowstone vacations including arrangements for Yellowstone tours, activities, and air and ground transportation.

Yellowstone Tour & Travel specializes in individual and family Yellowstone vacations, group tours, and international travelers. Take a moment to go through our website and learn more! We offer:

Yellowstone and Grand Teton Park Guided Summer Van (有篷车) Tours --- Daily summer “See Yellowstone” Park van tours and geyser (间歇泉) gazing tours, Yellowstone evening wildlife tours, and Yellowstone photography tours. Don’t miss Old Faithful, Yellowstone’s own Grand Canyon, or Mammoth Hot Springs. We also offer a Grand Teton National Park and Jackson Wyoming mini-bus tour. See Yellowstone wolves, grey bears, buffalo, and try Yellowstone bird watching.

Lamar Valley Wolf & Wildlife Tour --- Add a whole new plan to your Yellowstone Snowmobile adventure with our new “Lamar Valley Wolf and Wildlife Tour.” Lamar Valley is located in northern part of Yellowstone. Four wolf groups make Lamar Valley their home constantly challenged by other moving groups in the park. This is your best chance to see the wolves in Yellowstone in winter!

Snowmobile Yellowstone Park --- Discover the wonder of Old Faithful in winter, herds wild deer and cows within your reach; once-in-a-lifetime experience with your professional Yellowstone Guide. Watch Yellowstone wolves and bald eagles.

Adventure Snowmobile Packages --- Offered in three surrounding National Forests; snowmobile to Two Top Mountain or into Island Park, Idaho.

REMEMBER: Yellowstone National Park has seasonal closures of some roads and entrances. Before planning your vacation, please call us and we can ensure that your route / activities will be available!

Please visit our website and contact us for further information or assistance in planning your Yellowstone Country Adventure Vacation, or book a reservation online! Make your Yellowstone Dream a reality.

小题1: What can we learn from the first paragraph?

A．Yellowstone Tour & Travel is a company with a history of over 25 years.

B．Yellowstone Tour & Travel is a company serving people 25 years.

C．Yellowstone Tour & Travel has a one-stop shop for most vacations.

D．Yellowstone Tour & Travel can lend visitors planes and ships.小题2:Yellowstone Tour & Travel can serve the following EXCEPT _________.

A．girl vacations

B．family vacations

C．group tours

D．international travels小题3: If you want to see grey bears, buffalo, you may join __________.

A．Yellowstone and Grand Teton Park Guided Summer Van Tours

B．Lamar Valley Wolf & Wildlife Tour

C．Snowmobile Yellowstone Park

D．Adventure Snowmobile Packages小题4: In Lamar Valley, you can have the best opportunity to see __________ in winter.

A．bald eagles

B．buffalo

C．grey bears

D．wolves

以下哪个是有关字体正确说法（）。

A.使用宋体书写中文

B.使用国家颁发的简化汉字

C.字体要求书写方正

D.拉丁字母要按标准书写

药性微温，善降肺胃之气而消痰止咳的药是

A．半夏

B．旋覆花

C．陈皮

D．砂仁

E．枳实