下列植物中,()组对遮荫网遮光率的要求从低到高。
A.绿萝、散尾葵、苏铁
B.散尾葵、苏铁、绿萝
C.苏铁、散尾葵、绿萝
D.绿萝、苏铁、散尾葵
参考答案:C
_____ is no doubt _____100 years ago animal testing was cruel. [ ]
A. It; whether
B. It; that
C. There; whether
D. There; that
切换参数中测量报告上报准则不正确的是()
A.周期上报
B.事件上报
C.不上报
D.混合上报