题目内容
（请给出正确答案）
A.debit card
B.credit card
C.money order
D.check
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更多“What common forms of payment in the US are mentioned in this chapter？ （）”相关的问题
A、Relaxing
B、Emphasizing
C、Waiting for applause
D、Avoiding ambiguity
A、advertising
B、campus recruitment
C、e-recruitment
D、referral from employees
A、Trait approach
B、Results approach
C、Orthodox approach
D、Behavior approach
A、Alkaline denaturation
B、Protease
C、Exonuclease
D、Heat
The foreign research scholar usually isolates【C6】______in the laboratory as a means of protection;【C7】______, what he needs is to be fitted【C8】______a highly organized university system quite different from【C9】______at home. He is faced in his daily work【C10】______differences in philosophy, arrangements of courses and methods of teaching. Both the visiting professor and his students【C11】______background in each other's cultures. Some【C12】______of what is already in the minds of American students is【C13】______by the foreign professor. While helping him to【C14】______himself to his new environment, the university must also【C15】______certain adjustments in order to【C16】______full advantage of what the newcomer can【C17】______. It isn't always known how to make【C18】______use of foreign faculty, especially at smaller colleges. This is thought to be a【C19】______where further study is called【C20】______. The findings of such a study will be of value to colleges and universities with foreign faculty.
【C1】
A．with
B．for
C．of
D．at
B．Although positive feedback loops are probably the most prevalent way of ensuring that daughter cells remember what kind of cells they are meant to be,there are other ways of reinforcing cell identity. One involves the methylation of DNA．In vertebrate cells, DNA methylation occurs on certain cytosine bases. This covalent modification generally turns off the affected genes by attracting proteins that bind to methylated cytosines and block gene transcription. DNA methylation patterns are passed on to progeny cells by the action of an enzyme that copies the methylation pattern on the parent DNA strand to the daughter DNA strand as it is synthesizeD
C．Another mechanism for inheriting gene expression patterns involves the modification of histones. When a cell replicates its DNA,each daughter double helix receives half of its parent’s histone proteins, which contain the covalent modifications that were present on the parent chromosom
E．Enzymes responsible for these modifications may bind to the parental histones and confer the same modifications to the new histones nearby. It has been proposed that this cycle of modification helps reestablish. the pattern of chromatin structure found in the parent chromosome
D．Because all of these cell-memory mechanisms transmit patterns of gene expression from parent to daughter cell without altering the actual nucleotide sequence of the DNA,they are considered to be forms of epigenetic inheritanc
E．These mechanisms, which work together, play an important part in maintaining patterns of gene expression, allowing transient signals from the environment to be remembered by our cells—a fact that has important implications for understanding how cells operate and how they malfunction in diseas
E．
A、the removal of all unwanted things from a place
B、the official permission for a plane to take off or land
C、the process of a check being paid by a bank
D、the maximum height limit
A、temporary parking for a very short time to drop somebody off or pick somebody up
B、parking by somebody else, especially in a hotel or restaurant
C、leaving your car and transfer to a public transport, like airplane or train
D、parking on street and pay by the meter on both sides of the street
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