The sequence of rape flower bud differentiation is
A: A. Main stem, primary branch, secondary branch
B: B, primary branch, secondary branch, main stem
C: C. Secondary branching, primary branching, main stem
D: D, simultaneous differentiation
A: A. Main stem, primary branch, secondary branch
B: B, primary branch, secondary branch, main stem
C: C. Secondary branching, primary branching, main stem
D: D, simultaneous differentiation
A
举一反三
- The stock market main two sections are: A: Primary and secondary B: Real time and future time C: Primary and Real time D: Secondary and future time
- When there is a load, the main magnetic flux of the transformer is generated by ( ). A: Primary current I1 B: Secondary current I2 C: Primary current I1 andSecondary current I2 together D: Neither primary current I1 nor secondary currentI2
- For primary and secondary education, there are two main categories of school: State Schools and Independent Schools.
- What are the main sources of marketing research information？: higher research|primary research|secondary research|thirdly research
- In exploring data for a research proposal, sources can be divided into ____________.primary A: primary source and secondary source B: first source and second source C: direct source and indirect source D: main source and minor source
内容
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You get a color by mixing two primary colors. A: primary B: tertiary C: analagous D: secondary
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Primary and secondary education system in the UK is compulsory.( )
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The protoxylem is primary xylem and the metaxylem is secondary xylem.
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As a rule, a _________ is connected to the primary connector and a _________ to the secondary connector.
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Diachronic study of word meanings is concerned with how a word develops its ______ meaning from its _____ meaning. ( ) A: primary; derived B: derived; primary C: central; secondary D: secondary; central