Some molecules are large enough ________ (see) under the electronic microscope.
更新时间:2024-11-15 18:38:46to be seen
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Matteristhename________(give)toeverythingwhichhasweightandoccupiesspace.
Ishallneverforget________(meet)thelatePremierZhouduringhisinspectionofourfactory.
Herefusedtotelluswhetherhe________(undertake)thejob.
Ipreferthisdiagram________thatone.
Hardlyhadhefinishedhisspeech________theaudiencestartedcheering.
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