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搜题
简答题】
对于乙醇发酵菌株 LY68 , 当菌种保藏不妥或生长条件要求没有得到满足的时候,菌种 就 可能发生 ________ ,要通过菌种 ________ 的措施恢复该菌种原有典型性状。
参考答案:
退化;衰退;菌种退化;菌种衰退;复壮
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举一反三
【单选题】招标人与中标的投标单位在规定的时间内,即发布中标通知书以后( )日内签订承包合同?
A.
20
B.
25
C.
30
D.
60
【单选题】碳水化合物主要是由哪三种元素组成的?
A.
碳氢氧
B.
碳氮氢
C.
氧氢氮
D.
碳氮硫
【简答题】优学院: 会计人员的职业道德包括( )
【单选题】在乳牙列中,患齲率最高的是
A.
上颌第二乳磨牙
B.
下颌第二乳磨牙
C.
第一乳磨牙
D.
乳上前牙
E.
乳下前牙
【单选题】一般牙齿做窝沟封闭的时间是在牙齿萌出后()
A.
1月以内
B.
3月以内
C.
半年以内
D.
1年以内
E.
2年以内
【单选题】《七子之歌》是闻一多于1925年在美国留学期间创作的一首组诗,以下哪首不是其中的七首之一( )。
A.
《广州湾》
B.
《厦门》
C.
《旅顺,大连》
D.
《威海卫》
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A.
2种,6V和8V
B.
2种,0.7V和6V
C.
3种,0.7V,6V和8V
D.
4种,0.7V,6V,14V和8V
【单选题】— Look at the sentences below and the information about mergers and takeovers involving four companies on the opposite page. — Which company (A, B, C or D) does each sentence 1 - 7 refer to? — For eac...
B.
Bus operator Barkway has been hit by stiff competition and dwindling profitability. As a result the company has been forced to scrap its plans to expand overseas and instead will concentrate on growing its existing business. The continuing decline in the company's share price has led to speculation that it may fall prey to one of its rivals. This may well prove wrong), though, as Barkway's founder and chief executive, Kerry Matthews, has persuaded the board to do everything in its power to resist a takeover.
C.
Carolyn Swaine, the former chief executive of coffee shop chain Marshmont's, is trying hard to raise capital for a bid for her old company. Swaine left last year after a series of disagreements over Marshmont's future direction, and several top managers are expected to leave if she succeeds in buying the chain. Although Marshmont's is profitable, it is too small to stay independent for much longer, and even if Swaine takes control, the company will soon have to become part of a larger chain.
D.
Keston, the respected maker of television programmes, has announced that it has agreed an outline deal to merge with Stardust TV. A year ago, with its profits plunging, Keston faced a strong takeover bid by another of its competitors, but fought hard against it, and has since become more profitable. The company is now convinced, however, that its future success lies in being part of a larger organisation. Both Keston and Stardust have a reputation for producing striking television programmes, and a merger is likely to be beneficial, both creatively and financially. This company has changed its attitude towards remaining independent.
【判断题】核酸具有两性解离性质,因此也有pI,且在pI时具有溶解度最大,在电场中不移动的性质。
A.
正确
B.
错误
【单选题】学生たちは 夜 10時____ 寝ます。 a.と   b.に   c.で   d.の
A.
a
B.
b
C.
c
D.
d