【名词&注释】
显微镜(microscope)、水溶性基质(soluble matrix)、水溶性药物(water-soluble drug)、染色体。
[单选题]39___________
A. written
B. suffered
C. observed
D. lost
查看答案&解析
举一反三：
[单选题]Most Americans would prefer to keep their problems ________ themselves, and solve their problems ______ themselves.
A. to; by
B. by; to
C. for; to
D. in; on
[单选题]以下说法正确的是（ ）。
A. 水溶性药物选择脂溶性基质
B. 脂溶性药物选择脂溶性基质
C. 脂溶性药物选择中性基质
D. 水溶性药物选择水溶性基质
E. 药物与基质无关
[单选题]It was a nice house, but ( )too small for a family of live.
A. rarely
B. fairly
C. rather
D. pretty
[单选题]—Why do you want to work for our company?—This is the job that I _______for.
A. looked
B. am to look
C. had looked
D. have been looking
[单选题]使用显微镜观察洋葱根尖细胞染色体的基本步骤包括：①调节细准焦螺旋；②转换高倍镜；③把分裂中的细胞移至视野中央；④将洋葱根尖永久装片放在低倍镜下观察。正确的操作顺序是
A. ①②③④
B. ②①④③
C. ③②④①
D. ④③②①
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