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【单选题】
科学家在细胞中发现了一种新的线粒体因子——MTERF3，这一因子主要抑制线粒体DNA的表达，从而减少细胞能量的产生。此项成果将可能有助于糖尿病、心脏病和帕金森氏症等多种疾病的治疗。根据相关知识和以上资料，下列叙述错误的是（）A.
线粒体DNA也含有可以转录、翻译的功能基因
B.
线粒体基因控制性状的遗传不符合孟德尔遗传定律
C.
线粒体因子MTERF3直接抑制细胞呼吸中酶的活性
D.
糖尿病、心脏病和帕金森氏症等疾病可能与线粒体功能受损相关
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【单选题】Hardly the helicopter _______ when the waiting crowd ran toward it.
A.
had...landed
B.
has...landed
C.
did...landed
D.
was... landing
【简答题】Hardly ________ the helicopter ________ when the waiting crowd ran toward it. A) had ..., landed B) has ..., landed C) did..., land D) was..., landing
【单选题】A small fuel spillage has occurred during helicopter refueling. After the leak has been stopped and fire-control personnel have been notified and are standing by，the next step is to（）.
A.
proceed with fueling operation
B.
have helicopter move to a safer location
C.
wash spilled fuel away with a flood of water
D.
clean spilled fuel with rags
【单选题】The FBI has been called in to help __________ the tragic helicopter crash that killed NBA champion Kobe Bryant, and his teenage daughter.
A.
neglect
B.
investigate
C.
insert
D.
emerge
【简答题】Hardly ________ the helicopter ________ when the waiting crowd ran toward it. A) has ... landed B) had ... landed C) would ... land D) was ... landing
【单选题】Hardly_____ the helicopter______ when the waiting crowd ran towards it.
A.
has…landed
B.
had…landed
C.
would…land
D.
was…landing
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