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【单选题】
黄曲霉毒素主要是由黄曲霉菌产生的可致癌毒素,其生物合成受多个基因控制,也受温度、 pH等因素影响。下列选项正确的是A.
黄曲霉菌能否产生黄曲霉毒素属于相对性状
B.
温度、pH等环境因素不会影响生物体的表现型
C.
不能产生黄曲霉毒素的菌株的基因型都相同
D.
黄曲霉毒素能够致癌属于生物的表现型
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【单选题】Excuse me,where is the meeting room? --Just a second. I′ll have someone ____ you there.
A.
takes
B.
take
C.
taking
D.
to take
【单选题】The girl often ______ cold when she ______.
A.
catches dances
B.
catch dance
C.
catchs dances
D.
catches dance
【单选题】When I___________ a little girl，l often ＿＿＿＿＿＿ questions．
A.
is，asks
B.
was，asks
C.
is，asked
D.
was，asked
【单选题】Excuse me, where is the nearest supermarket? ________
A.
You got lost.
B.
You can't miss it.
C.
It is easy to get downtown.
D.
It is opposite the bank.
【简答题】The girl _____(not like) to eat dessert.
【单选题】The girl is ____ of the two.
A.
thinner
B.
the thinner
C.
more thinner
D.
the thinnest
【单选题】The word beaver (meaning "girl) is .
A.
a dialectal word
B.
argot
C.
an archaism
D.
slang
【单选题】—Excuse me. Where is the supermarket, please? —Go along the Green Street and then ______ left. [ ]
A.
take
B.
turn
C.
make
D.
get
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