更多“根据具体情况，EDFA应用时可用作___、___、___。”相关的问题
用基因型为AaBb的植物个体的花粉离体培养成幼苗，再用秋水仙素处理，使之成为二倍体，幼苗成熟后让其自交，则自交后代中学科网（）
A.1/4为纯合体
B.全部为纯合体学科网
C.1/16为纯合体
D.3/4为纯合体
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目前手机银行消息推送功能能支持的功能和内容有（）。
A . 文字
B . 空格
C . 图片
D . 字体设置
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除了黄金分割线法和百分比法，人们在实践中还总结出了其他常见的确定支撑和压力点位的方法有______。
A.最高点与最低点
B.成交密集区
C.颈线
D.缺口
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焊条牌号中结构钢焊条的字母代号是（）。
A、J
B、T
C、JG
D、A
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99%存在于骨骼和牙齿中，其余的1%存在于血液和细胞外液中的无机盐是（）
A.钙 B.铁 C.碘 D.锌
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下列选项属于对采购人员正向激励的是______。
A．公平激励
B．信任激励
C．内在激励
D．认同激励
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将一项现时义务确认为负债,首先应当符合负债的定义,除此之外,还应当同时满足以下哪两个条件。( )
A . 与该义务有关的经济利益很可能流出企业B . 与该义务有关的经济利益可能流出企业C . 未来流出的经济利益的金额能够可靠地计量D . 未来流出的经济利益的金额也许能够计量,也许不能准确地计量。
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组织应对顾客和外部供方的财产进行识别、验证、保护和防护。
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物质的量浓度均为0.1mol•L-1的下列溶液，在临床上属于等渗溶液的是（）。
A . 葡萄糖B . NaClCaCl2D . 蔗糖
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54.女，请根据其正常膝关节影像图像，判断其最可能的年龄()
A.5岁左右
B.11岁左右
C.17岁左右
D.23岁左右
E.29岁左右
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作为政治和军事的凭证信物，中国古代的符节，从其用途上看主要有（）
A . 调动符节
B . 邮传符节
C . 身份符节
D . 专使符节
E . 施令符节
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第49题：评价地基承载力、边坡稳定性、计算土压力的重要指标是指土的（）。
A：抗剪强度
B：液性指数
C：湿陷系数
D：塑性指数
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精锪孔时，为（），可停车靠主轴惯性锪孔。
A、减少振痕
B、提高尺寸精度
C、提高形状精度
D、提高位置精度
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Dell says the problem is that it dropped prices too much. But deeper, more threatening forces are also now at play. The first is the resurgence of rivals, which have caught up with Dell's low price model. By driving prices down, Dell has unintentionally cut costs for its rivals too. 'The supply chain has become as standardized as the components—the money has been wrung out,' explains an expert. Dell, by not working through retail outlets, is still more efficient, but the cost benefits that this once brought have been whittled away. The second factor hurting Dell is that growth in the computer business is coming from the consumer market and emerging countries rather than the corporate market, in which Dell sells around 85% of its machines. Increasing sales to consumers is difficult for Dell because individuals tend to want to see and touch computers before buying them. They also like to be able to return the machine easily if it breaks. Dell's tack of retail presence, once ballyhooed as a benefit, has turned into grave disadvantage. A third problem facing Dell is its exclusive use of Intel chips rather than lower-priced ones made by Intel's sworn rivals, AMD. This arrangement lets Dell buy chips inexpensively and benefit from Intel's generous co-marketing programmes. But it has started to harm Dell's sales for higher margin computer servers.
A.B.C.D.
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中国人民银行在金融市场上购入国库券时，相应会______基础货币。 A．买断 B投放 C．购入 D．回笼
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