题干

下列反应中生成物总能量高于反应物总能量的是(  )

A:碳酸钙受热分解

B:乙醇燃烧

C:铝粉与氧化铁粉末反应

D:氧化钙溶于水

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答案(点此获取答案解析)

A

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    The O. Henry Museum

    The aim of the O. Henry Museum is to collect, preserve, and interpret artifacts,works and archival (档案的) materials relative to the author, for literary» educational, and historical purposes that are accessible to the public. The museum was set up in 1934, under the authority of the City of Austin, and is both a National Register Property and a National Literary Landmark.

    The O. Henry Museum is open from Wednesday to Sunday, noon to 5:00 pm. Admission is free. Tours are also available for free. Please contact the museum at least one week in advance to schedule a tour for a group of 10 or more. Metered parking is available on the street in front of the museum. The museum's gift shop has for sale T-shirts, coffee mugs, DVDs, and an array of books by and about O. Henry.

    Group tours:

    We ask for one-week advance notice of groups more than 10 people, including schools, church groups, and organizations.

    Donations:

    Donations greatly benefit the museum and its programs. Inquire about contributing.

    Volunteer:

    Contact us about volunteering at the museum. We are currently in need of a gardener and a volunteer docent (讲解员).

    Staff:

    Valerie Bennett, Curator valerie. bennett@ci. austin. tx. us

    Michael Hoinski, Culture & Arts Education Specialist michael. hoinski@ci. austin. tx. us

    Elizabeth Taylor, Docent

    Location: 409 East Fifth Street, Austin, Texas 78701