You are designing the placement of the global catalog servers. You want to use the minimum number of global catalog servers that are required. Which design should you use?（）
A. One global catalog server in New York.
B. Two global catalog servers in New York.
C. One global catalog server in Chicago and one global catalog server in New York.
D. Two global catalog servers in Chicago and two global catalog servers in New York.
E. One global catalog server in Chicago, one global catalog server in New York, and one global catalog server in Boston.
查看答案
《民法总则》规定，（）周岁以上的未成年人为限制民事行为能力人，实施民事法律行为由其法定代理人代理或者经其法定代理人同意、追认，但是可以独立实施纯获利益的民事法律行为或者与其年龄、智力相适应的民事法律行为。
A. 八
B. 九
C. 十四
D. 十六
儿童期和青春期的碘缺乏的主要表现是（）。
A. 脚气病
B. “3D”症状
C. 甲状腺肿
D. 高碘性甲状腺肿
微信支付 
支付宝支付