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【简答题】
溶液配制的步骤:计算 - 称量( ) - 溶解( ) - ( ) - 转移 - 洗涤 - - 摇匀 / 装瓶
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举一反三
【简答题】A．They are good at learning from other nations. B．They are able to grasp growth opportunities. C．They attach great importance to education. D．They have made use of advanced technologies.
【单选题】I've made an ______ for you to see the doctor at 5'oclock.
A.
interview
B.
assignment
C.
opportunity
D.
appointment
【简答题】人体有多少块肌肉？多少骨骼？
【简答题】Weekend Miracles Weekend Miracles give children aged 9 and older in the Children’s Center the opportunity to visit a host family who partners the child to find the child a permanent family. The host f...
【简答题】A．To combat competition and raise productivity. B．To provide them with more job opportunities. C．To help them maintain their living standard. D．To pr them from holding a second job.
【简答题】人体有多少块肌肉
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