为服务对象提供避孕措施咨询服务时，咨询人员必须掌握不同避孕措施的适用和禁忌情况。
参考答案：对
下列说法中正确的是（ ）
A．x=3是不等式2x＞1的解
B．x=3是不等式2x＞1的唯一解
C．x=3不是不等式2x＞1的解
D．x=3是不等式2x＞1的解集
The bed ____wood ____three separate parts.
A．is made from; is made up of
B．made by; is made with
C．made of; is made of
D．is made up of; is made by
