桃

When East ruffs the next club, you over-ruff and play the jack of hearts, throwing the spade from dummy.

当东将吃下张梅花，你超吃并打J，明手垫黑桃。

What about a ruffing squeeze if West holds five spades and four diamonds...?

如果西持有五张黑桃和四张方块，对他进行将吃挤牌如何？

After ruffing the spade return you ruff a heart in dummy, and when the queen appears you are not too happy about stopping in game.

在将吃了黑桃回攻后，你明手将吃一个红心，当Q掉下来时，你对于仅停在成局定约上感到并不高兴。

Five potato lines were selected for peach aphid resistanceidentification, and the result showed that the effect of insect-resistance was apparent.

通过对转GNA马铃薯进行抗蚜虫鉴定，结果证明转GNA马铃薯对桃蚜具有显著的抗性作用。

On the basis of many times of experiments, A optimized reaction system about the microsatellite PCR amplification and partial COⅠ-Ⅱgene amplification of the green peach aphid was proposed.

在多次实验摸索的基础上，优化了桃蚜微卫星扩增和mtDNA COⅠ-Ⅱ部分序列特异扩增的反应体系。

It is the first time of using the microsatellite primer-PCR and partial gene of mtDNA COⅠ-Ⅱamplification to analyze genetic diversity of host bio-type and body colour bio-type and to probe out the changing mechanism of body colour on green peach aphid in China.

本论文在国内首次运用微卫星引物PCR 扩增和mtDNA COⅠ-Ⅱ部分序列特异扩增的方法对桃蚜寄主生物型和体色生物型的遗传分化和体色变化机理进行了研究。

At the mean time higher dose increased its endure tolerance. 2. Extracting DNA from small sized insect proved that the size of the green peach aphid's genome DNA is about 21 kb.

此结果从分子水平证明处理F2代桃蚜的DNA发生了变异，揭示出紫外诱导可遗传的变异，且变异大小是由辐射时间和辐射强度共同决定。

According to the Marker (EcoR1-HindⅢ), the size of the green peach aphid's genome DNA is about 21 kb.

根据分子量Marker(EcoR1-HindⅢ)，桃蚜基因组DNA 的大小在21kb 左右。

On the basis of many times of experiments, A optimized reaction system about the microsatellite PCR amplification and partial COⅠ-Ⅱgene amplification of the green peach aphid was proposed. 3. It is clear that the result of polymorphic bands shows the abundance among the aphids after different UV radiation with three primers.

遗传多样性指标的方差分析结果表明，对于平均多态位点率，2 h处理是平均多态位点率的临界值，超过2 h， F2代平均多态位点率发生显著变异；对于平均基因多样度，对照与不同时间处理间差异显著；研究结果也表明低剂量紫外照射可增加蚜虫的免疫性，高剂量辐射则导致桃蚜的基因发生变异。

As the development of resistance, the green peach aphid showed strong tolerance to pirimicarb and fenvalerate, so these two insecticides were not suitable for control the aphid in field for the risks to the natural enemy.

而抗蚜威和氰戊菊酯由于害虫抗药性或缺乏对天敌的安全性，已不宜用于桃蚜的化学防治。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。