更多"The passage asserts which of the fo"的相关试题:
[单项选择]The passage suggests which of the following about the increased resistance to harmful root fungi that some Plants infected with mycorrhizal fungi seem to exhibit
A. There are at least three hypotheses that might account for the increase.
B. The plants that show increased resistance also exhibit improved nitrogen fixation.
C. Such increases may be independent of mycorrhizal infection.
D. It is unlikely that a satisfactory explanation can be found to account for the increase.
[单项选择]What is the following passage all about
A. End-user Programming.
B. Computers.
C. End-users of packaged programs.
D. Appropriate metaphors..
[单项选择]The following short passage is mainly about
A. knowledge acquisition research.
B. knowledge-based system development.
C. the conceptual computational structures.
D. the cognitive processes.
[单项选择]According to the passage, which of the following changes occurred in English gardens during the European settlement of North America
A. They grew in size in order to provide enough plants to export to the New World
B. They contained a wider variety of tulips than ever before
C. They contained many new types of North American plants
D. They decreased in size on the estates of wealthy people