穿套西装像绅士容易,但要做绅士可不容易。
A. It is easy said than done.
B. It is easy to wear a suit, but it is difficult to be a gentleman.
C. It is difficult to wear a suit to look like a gentleman, but it is easy to be one.
D. It is easy to wear a suit to look like a gentleman, but it is difficult to be one.
在中国古代,红色通常与喜庆有关,而黄色则是权力的象征。
A. In ancient China, red was usually related to happiness while yellow was a symbol for power.
B. In ancient China, yellow was usually related to happiness while red was a symbol for power.
C. In ancient China, red was usually related to happiness while green was a symbol for power.
D. In ancient China, pink was usually related to happiness while yellow was a symbol for power.
孩子、青年人和成年人都为派对盛装打扮
A. Students, workers and farmers dress up for the party.
B. Children, youth and adults pray for the party.
C. The kids, teenagers and adults dress up for the party.
D. The kids, teenagers and adults get used to the party.
对于HttpServlet类的描述，错误的是( )
A. 我们自己编写的Servlet继承了HttpServlet类，一定需覆盖doPost或者doGet
B. Httpservlet类扩展了GenericServlet类，实现了GenericServlet类的抽象方法
C. Httpservlet类中处理客户请求和响应时所使用的两个接口是：HttpServletRequest和HttpServletResponse.
D. 我们自己编写的servlet继承了Httpservlet类，一般只需要覆盖doPost或doGet方法，不必覆盖servive（）方法，因为一个service（）方法会调用doPost或者doGet方法
Servlet容器为每一个HttpSession对象分配一个唯一标识符，叫做_________。
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