Depending on the fact whether the cultivation beds are applicable to solid medium materials, the soilless cultivation is divided into（）and（）
A. hydroponic cultivation
B. soil medium cultivation
C. non-solid medium cultivation
D. aeroponic cultivation
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American scientists_showed the necessity of adding trace elements based on the results of experiments, and released the standard formula of nutrient solution accordingly（）
A. Wigman and Boussingault
Boiussingault and Anon
C. Sax and Norbert
D. Hoglaland and Anon
which theories listed below are based on the pre-assumption of informationally efficient market（）
A. MM theory
B. agency thory
CAPM theory
D. OPT theory
the Challenges for the Indian banking systems include（）
A. political interference
B. lower level of technological innovation
C. weak credit culture
D. weak social network
which of the following statement is correct for the correspondent bank（）
A. a bank is a locally incorporated bank that has its own capital and charter
B. it is a common approach used for enhancing physical presence overseas
C. it is like a full-fledged bank except that it does not handle retail deposits
D. it is the most common conduit for participating in international banking activities
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