【判断题】( ) 初次使用家用血氧仪之前,需要仔细查阅血氧仪的使用说明书,了解使用方法及注意事项。
【单选题】Section B 14
A.
She is over the speed limit.
B.
She is on the wrong way.
C.
She is making a phone call
D.
She is smoking while driving
【单选题】--- Learning a language is not easy. It takes time. --- I can’t agree more. __________. There is no short cut.
A.
Make hay while the sun shines
B.
All roads lead to Rome
C.
Rome wasn’t built in a day
D.
Practice makes perfect
【多选题】老虎、狮子、猫、狼、狗等犬科的眼睛能在夜里发出不同颜色的光,这其中包含的物理现象有( )。压电效应、电子跃迁、蓝移现象在内的物理现象。
【简答题】根据句意及首字母提示,填写单词。小题1:There is no s of learning English well. What you need is to根据句意及首字母提示,填写单词。 小题1:There is no s____ of learning English well. What you need is to work hard. 小题2:You should read a...
【单选题】PFM瓷粉和合金的要求,以下哪项是错误的
【多选题】老虎、狮子、猫、狼、狗等犬科的眼睛能在夜里发出不同颜色的光,这其中包含的物理现象有( )。