试题与答案

简述农药对农作物的影响。

题型:问答题 简答题

题目:

简述农药对农作物的影响。

答案:

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下面是错误答案,用来干扰机器的。

参考答案:A解析: 由已知有是相应的齐次方程组的两个线性无关解,故系数矩阵的秩≤2(因为4-r(A)≥2)又系数矩阵有二阶子式故系数矩阵的秩≥2,因而系数矩阵的秩为2,从而齐次方程组的基础解系包含2个解向...

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题型:阅读理解

The Hawaiian Islands
◆◇◆Hawaii
The “Big Island” of Hawaii is a paradise (天堂) playground where visitors can enjoy a popular lifestyle and at the same time, witness the attraction of nature thousands of square miles form a wonderland, featuring breathtaking beaches, forests, snow–covered mountains and amazing active volcanoes. A visit to Volcanoes National Park, which is described as a true wonder of the world, is a must. It is the state’s biggest attraction.

Accommodations
Seasons Resort Hualala from $ 205.00
Fairmont Orchid from $108.00
Sightseeing and Experiences
Circle Island Tour from $48.00
◆◇◆Kauai
The beautiful landscape of Kauai has led to it being called the “Garden Isle”, but it is also referred to as the “Island of discovery”, and with good reason – a land of striking natural contrasts just waiting to be explored. Green mountains, a breathtaking coastline and white sand beaches combine to make this magical place one of the world’s most relaxing locations.
Accommodations
Hyatt Kauai from $ 101.00
Sheraton Kauai Resort from $ 79.00
◆◇◆ Maui
Voted the “World’s Best Island”, Maui is widely regarded as one of the most romantic destinations on the earth.
It is known as the “Valley Isle” and was the ancient playground for Hawaiian royalty. The island is largely rural with a small and wonderful population and a host of attractions and nature wonders.
Accommodations
Hyatt Regency Maui Resort & Spa from $ 87.00
Sheraton Maui from $ 99.00
◆◇◆Oahu
Oahu has a unique rhythm, filling the air with sweet fragrances (香气), music and language from beaches and nightlife to rainforests and valleys. Adventure, romance, discovery – Oahu waits for you.
Accommodations
Halekulani from $ 121.00
Hilton Hawaiian Village from $ 73.00
Sightseeing and Experiences
Royal Circle Island Tour from $ 34.00
Paradise Cove Lu’au $ 44.00
◆◇◆Lanai
Lanai in one of the smallest Hawaiian Island, yet it’s full of surprises. Known as the “Pineapple Isle”, it combines all the natural beauties ranging from the paradise of Shipwreck Beach to underwater sea caves.
Accommodations
Four seasons Resort Lanai at Manele Bay from $ 134.00    
※  All prices are based on per person per night.
小题1:For two adults spending two nights in one of the accommodations, they have to pay at least     .
A.$73.00B.$146.00C.$136.00D.$292.00
小题2:According to the passage, the “Garden Isle”        .
A.is the smallest of the Hawaiian Islands
B.is an island with a very small population
C.is a place to explore the land of nature
D.features beaches, forests and snow-covered mountains
小题3:The passage is mainly intended to      .
A.tell differences between islands in Hawaiian
B.provide a better understanding of the geography of Hawaiian
C.offer accommodation services to the tourists
D.attract people to make a visit to Hawaiian
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