拱部衬砌有可能掉落大块体(与砌块大小一样),属于( )劣化等级。
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关于劣化等级划定说法错误的是。( )
A. 凡结构物或主要构件功能严重劣化,危机行车安全,评定为A级AA 等;
B. 凡结构物或主要构件功能严重劣化,进-步发展会危及行车安全,评定为A级A1等;
C. 凡结构物或构件功能劣化,进一步发展将会升为AA级,评定为B级;
D. 凡结构物或构件劣化,对安全影响较小,评定为C级。
下列属于隧道大修的项目是。( )
A. 更换涵洞盖板
B. 更换支座
C. 清理隧道水沟
D. 加固隧道洞门
What do we mean when we talk about “diversity” in this context?
A. Differences in ethnicity, race, professional backgrounds, religion, and political beliefs.
B. Common culture, knowledge, and religion.
C. Differences in ambition.
D. Same colour of skin.
What kinds of diversities and cultural differences might you experience in a peacekeeping mission and the host country?
A. Race, ethnicity, language, sex, and religion.
B. Geographic location, work style, and educational background.
C. Marital status, parental status, and appearance.
D. All of the above.
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