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【单选题】
we can’t remove our troubles in life forever, we can leave them behind when we are on vocation.A.
When
B.
While
C.
Unless
D.
Until
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【简答题】The gene they discovered today doesn’t all those cases. (account for)
【简答题】housekeeping gene
【单选题】The gene for lactose utilization was inserted next to the gene under study and the new construct was transferred to a new host. The lactose gene was used as a
A.
messenger gene
B.
delivery gene
C.
restriction site gene
D.
reporter gene
【简答题】基因调控(gene regulation or gene control)
【单选题】Many firms today use RFID technology to ________.
A.
identify new target markets
B.
analyze threats and opportunities in the macroenvironment
C.
move toward environmental sustainability
D.
track products through various points in the distribution channel
【单选题】Which is not housekeeping gene?
A.
tRNA gene
B.
rRNA gene
C.
mitochondria gene
D.
hemoglobin gene
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