HRC硬度标识使用的是（）

A:洛氏硬度 B:布氏硬度 C:维氏硬度 D:通用硬度

布氏硬度（HB）和洛氏硬度（HRC）之间的近似关系是（）。

A:HB＝10HRC； B:HB＝15HRC； C:HB＝20HRC； D:HB＝25HRC。

布氏硬度（HB）和洛氏硬度（HRC）之间的近似差分值是（）。

A:HB＝10HRC B:HB＝15HRC C:HB＝20HRC D:HB＝25HRC

布氏硬度（HB）与洛氏硬度（HRC）之间的近似关系是（）

A:1HB=10HRC B:1HB=15HRC C:1HB=20HRC D:1HB=25HRC

HRC代表（）。

HRC的测量范围是（）。

A:20～70 B:20～88 C:20～90 D:20～100

HRC表示（）。

A:布氏硬度 B:维氏硬度 C:洛氏硬度 D:标尺

Passage Five
"No matter where you are or what time it is, there’s something going on at a Hard Rock Care. All over the world our cafes not only serve great food, but they serve up great music. "
The first Hard Rock Care (HRC) opened its doors to the public on June 14, 1971, in London. Founded by Isaac Tigrett and Peter Morton, two enterprising and music-loving Americans, HRC was a classic at once, attracting crowds of customers with its first-rate, but moderately priced American bill of fare, warm service and ever present rock "n" roll music and sensibility.
With more than 108 Hard Rock Cafes in 41 countries Hard Rock Care has become a truly global phenomenon. From its launch in London, England, to New York, Los Angeles, Paris and Tokyo, and on to such exotic locales as Kuala Lumpur and Taipei, Hard Rock offers a special experience to its devoted, ever-expanding clientele.
HRC has also become the world’s leading collector and exhibitor of rock "n" roll memorabilia and covered their walls with them. Their unparalleled collection consists of more than 60,000 pieces. It is rotated from restaurant to restaurant and provides the world’s most comprehensive "visual history" of rock "n" roll.
Throughout its history, HRC has been governed by a special service philosophy: "Love All--Serve All. "HRC is a place where all people have always been welcome, regardless of age, sex or class.
Since it was established Hard Rock Care has taken part in a wide variety of human activities around the world. Following its idea of being more than just a restaurant, Hard Rock tries to connect its business and its passion to make the earth a safer, healthier and a better place to live. For example, HRC cafes take an active role in organizing parties to raise funds for different local charities.
They have also founded special initiatives like "Save the Planet" or "Ambassador Program"
All in all, today Hard Rock Cafe International is an entertainment and leisure company that continues to successfully expand the Hard Rock brand through countless music-related activities.
The big collection of rock memorabilia ______.

A:is shown in a museum in the USA B:can be seen in the London HRC C:is passed from restaurant to restaurant all over the world D:is displayed from east to west

Passage Five
"No matter where you are or what time it is, there’s something going on at a Hard Rock Care. All over the world our cafes not only serve great food, but they serve up great music. "
The first Hard Rock Care (HRC) opened its doors to the public on June 14, 1971, in London. Founded by Isaac Tigrett and Peter Morton, two enterprising and music-loving Americans, HRC was a classic at once, attracting crowds of customers with its first-rate, but moderately priced American bill of fare, warm service and ever present rock "n" roll music and sensibility.
With more than 108 Hard Rock Cafes in 41 countries Hard Rock Care has become a truly global phenomenon. From its launch in London, England, to New York, Los Angeles, Paris and Tokyo, and on to such exotic locales as Kuala Lumpur and Taipei, Hard Rock offers a special experience to its devoted, ever-expanding clientele.
HRC has also become the world’s leading collector and exhibitor of rock "n" roll memorabilia and covered their walls with them. Their unparalleled collection consists of more than 60,000 pieces. It is rotated from restaurant to restaurant and provides the world’s most comprehensive "visual history" of rock "n" roll.
Throughout its history, HRC has been governed by a special service philosophy: "Love All--Serve All. "HRC is a place where all people have always been welcome, regardless of age, sex or class.
Since it was established Hard Rock Care has taken part in a wide variety of human activities around the world. Following its idea of being more than just a restaurant, Hard Rock tries to connect its business and its passion to make the earth a safer, healthier and a better place to live. For example, HRC cafes take an active role in organizing parties to raise funds for different local charities.
They have also founded special initiatives like "Save the Planet" or "Ambassador Program"
All in all, today Hard Rock Cafe International is an entertainment and leisure company that continues to successfully expand the Hard Rock brand through countless music-related activities.
The big collection of rock memorabilia ______.

A:is shown in a museum in the USA B:can be seen in the London HRC C:is passed from restaurant to restaurant all over the world D:is displayed from east to west