题目内容
移液时，将移液管的下端伸入被移取溶液液面下越深越好，防止伸入太浅会产生空吸现象。
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移液管转移溶液时，管内溶液流出后一定要将残留在尖嘴末端的溶液吹入接收容器内。
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After ____ on almost everything from the jewelry section, I was about to ____ up, and then a quirky flower crown _____ my eye. I think a part of me knew right away that it was going to go to LA with me. I placed it on my head and it was like putting down the last piece of a ______. I felt complete; I felt happy, strong and careless and ______; I felt like me!
This is why... 这就是……的原因e.g. This is why I gave up the opportunity to learn abroad.这就是我放弃去国外学习的原因。1____________________________ ( 这就是我感到抱歉的原因) for her.2____________________________ ( 这就是我晚睡的原因) every night.3____________________ ( 这就是那个小孩儿哭泣的原因).
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