单项选择题 全钢拱架日光温室的透光率一般为露地的？ A、40〜50% B、60〜80% C、90〜100% D、50〜60%

单项选择题 ‏法律强调规范指引，重在调整人们的（   ）​ ‏​

多项选择题 Which suggestions may help control public speaking anxiety? A、Thorough preparation. B、Taking deep breaths to relax the body. C、Say something positive in your own thoughts. D、Confidence visualized.