题目内容

Suppose there had been no precipitation during 1 entire month of the 12-month period. Based on the information provided, during that month there would have been:

A. significant wet deposition of all 4 substances.
B. significant wet deposition of Cu2+ and Zn2+, but no wet deposition of Cl- and SO4 2-.
C. no wet deposition of any of the 4 substances.
D. no wet deposition of Cu2+ and Zn2+, but significant wet deposition of Cl- and SO4 2-.

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Suppose a scientist isolates a bacterial species that is 1 of the 4 species used in Experiment 1. She adds the species to sucrose broth and observes that neither acid nor CO2 is produced. She then adds the species to lactose broth and observes that both acid and CO2 are produced.Based on the results of Experiment 1, the species is most likely:

A. Species A.
B. Species B.
C. Species C.
D. Species D.

署名的每一作者都应自愿参与到研究的()中。
A开题
B论证
C总结
D发表

产权转移书据、借款合同的印花税税率分别为()。

A. O．05％；0．005％
B. 0．005％；0．05％
C. 0．05％；0．03％
D. 0．03％；0．5％