题干

下列有关探究光合作用过程的描述,正确的是(   )

A:将充分的暗处理后的天竺葵叶片一半遮光,光照一段时间,遮光部分遇碘变蓝

B:载有水绵和好氧细菌和临时装片,用透过三棱镜的光照射一段时间,绿光区域聚集细菌最多

C:向绿色植物提供H218O和CO2,光照一段时间,释放的气体含有18O2

D:向小球藻提供14CO2,光照一段时间,14C5化合物先于14C3化合物出现

上一题 下一题 0.0难度 选择题 更新时间:2018-06-26 10:01:39

答案(点此获取答案解析)

C

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    Self-confidence decides everything. When you are really confident, it attracts success to you like a magnet(磁铁). Self-confidence is the first step on the way1success. You should try your best to build your self-confidence.

    Be patient with yourself. Getting self-confidence2happen overnight(一夜之间). You might try something new and not meet your goal. If so, see what lessons you have got. Not meeting your goal is a3 to learn more about yourself. Self-confidence needs to be nurtured(培养), a bit at a time.

    Identify(认识)your abilities. Everyone is good at4 so discover the things in which you do well, and then focus on your abilities. Allow yourself to5them. Express yourself, whether it's through art, music, writing,6dance. Find something you enjoy and develop the ability to go with your interest.

    Stop comparing yourself with others. If you want to build your self-confidence, you have to focus on improving your own life for the better. You need to know that there is always someone who is prettier than you, just like there is always someone who 7attractive than you are. Caring about achieving your own goals and dreams is of great importance.

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    Self-confidence can really10through many ways. If your life is not what you want it to be, try to become confident and live your life with confidence.