搜题请搜索小程序“爱下问搜题”
问题 单项选择题

柴油机进行预热时，转速必须维持在600～900转/分，待油温达（），水温达（）时，再提高转速至1300转/分左右带负荷。

A、45℃；55℃

B、40℃；50℃

C、45℃；50℃

D、40℃；55℃

答案

参考答案：A

阅读理解

Experience the Colorado River the Hualapai Way!
River Runners Offers the ONLY One Day White-water Trip ANYWHERE at the
GRAND CANYON!
Since 1973, Hualapai River Runners has been conducting white-water rafting journeys on the Colorado River. Our experienced guides expertly sail along the river and share the history of the Canyon and the Hualapai people with you.
Visitors experience the excitement of whitewater rapids and then stop to enjoy the impressive beauty of Travertine Falls and a tasty lunch. No charge for children 2 years and under.
One-Day Trip
Retail $249.00 + $79.00 (helicopter and round-trip ground transportation)
White-water rafting tours begin in Peach Springs. Hualapai River Runners transports you to Diamond Creek, which is the starting point for the 37 mile rafting tour. Lunch is included and upon arrival at the rafting tour termination point (终点), fly out of the Grand Canyon by helicopter to Grand Canyon West.
Two-Day Trip
Retail $549.00 + $79.00 (helicopter and round-trip ground transportation)
Two-day rafting trips with one night on the Colorado River. All supplies and meals are included. Two days in the Grand Canyon, on the Colorado River, allows more time to explore one of the Seven Wonders of the World.
Tours Include:
• Round-trip transportation from Peach Springs to the starting point and from the termination points back to Peach Springs.
• Snack, drinks and lunch (vegetarian meals available upon request).
• Waterproof dry bags for storing your cameras, sunscreen, dry clothes, etc.
The helicopter part of transportation is weather permitting. If the helicopter transportation is cancelled because of bad weather, the raft will continue an additional two hours to South Cove and a maximum $20.00 per customer will be given back.
Special website booking rate 15% off rafting in June 2011. So book now!
Call us Toll Free Today! Tel: 1-888-868-9378
小题1:Where do white-water rafting tours start?
A．Travertine Falls.B．The Grand Canyon.
C．Grand Canyon West.D．Diamond Creek.
小题2:Which of the following is TRUE about the trip?
A．Hualapai River Runners provides dry clothes.
B．You will get $20 back if you are not satisfied.
C．The trip is free of charge for children under 2.
D．Online booking has a better offer all year round.
小题3:It can be learned from the text that _________.
A．the guides can help you learn sailing
B．the cost includes snack, drinks and lunch
C．the helicopter transportation can save you three hours’ time
D．the Grand Canyon is well-known for its history
小题4:What is the purpose of the text?
A．To explain how to make a rafting trip.
B．To explore the Hualapai culture.
C．To attract people to the sights.
D．To introduce the history of the Colorado River
查看答案
单项选择题

《船旗国监督检查记录簿》处理意见“滞留”的代码是（）

A.17

B.16

C.15

D.30
查看答案