“食盐加碘”通常是在氯化钠中加入碘酸钾，是我国预防人民碘缺乏病最经济和最有效地措施．下图是氯化钠和碘酸钾的溶解度曲线图．下列说法错误的是

A、氯化钠易溶于水

B、碘酸钾的溶解度随温度升高而增大

C、20℃时不可能制得相同质量分数的碘酸钾溶液和氯化钠溶液

D、20℃时两者的饱和溶液，氯化钠的质量分数大

The software architecture of a program or computing system is the structure or structures of the system, which comprise software （1）, the externally （2） properties of those components, and the relationships between them. The architecture is not the operational software. Rather, it is a （3）that enables a software engineer to: analyze the （4） of the design in meeting its stated requirements, consider architectural alternatives at a stage when making design changes is still relatively easy, and reduce the （5） associated with the construction of the software.

1（）

A.pattern

B.models

C.metadata

D.components