我国在()就初步建立了教学考评制度。那时学校就规定了对教育、教学进行考核、评价的内容和标准,是世界上最早的教学评价。
A.西周
B.东汉
C.隋朝
D.唐朝
参考答案:A
Prior to the UML, there was no clearleading (66) Ianguage. Users had to choose from among many similar modeling languages with minor differences in overall (67) power. Most of the modeling languages shared a set of commonly accepted concepts that are expressed slightly differently in various languages. This lack of (68) discouraged new users from entering the OO market and from doing OO modeling, without greatly expanding the power of modeling. Users longed for the industry to adopt one, or a very few, broadly supported modeling languages suitable for (69) usage.
Some Vendors were discouraged from entering the OO modeling area because of the need to support many similar, but slightly different, modeling languages. In particular, the supply of add-on tools has been depressed because small vendors cannot afford to support many different formats from many differem (70) modeling tools. It is important to the entire OO industry to encourage broadly based tools and vendors, as well as niche products that cater to the needs of specialized groups.
(69)处填()。
A.distincitive
B.special-purpose
C.separate
D.general-purpose
下图为某植物光合作用速率与环境因素之间的关系,请据图回答:
从图甲可见,光照强度超过某一强度时,光合作用速度不再增加,这种变化主要决定于(),此时光合作用的()阶段受到限制。