三角形的三边长分别为3a、4a、5a,则其周长为______.

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问题:

三角形的三边长分别为3a、4a、5a,则其周长为______.

考点:三角形的周长三角形的面积
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存款类金融机构为满足其流动性需要,必须保持足够数量的准备金。其维持适度现金资产存量的必要保障是()。

A. 适时灵活地调节现金资产存量

B. 现金来源合理

C.现金运用合理

D. 适时灵活地调节现金资产流量

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可编程DMA控制器8237A仅支持64KB的寻址空间,因此不能够访问系统的1M地址空间,因此系统使用74LS670芯片为通道1~3分别配置了一个 【12】 ,用来存放20位物理地址的高4位地址。

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China is to send its top negotiator on North Korea’s nuclear program to Pyongyang (36) amid international concern over the launch of (37) .
While the (38) and its ally Japan push for (39) against North Korea, China is (40) , not sanctions.
Also, the (41) to Japan says sanctions on North Korea will (42) efforts to bring the secluded state back to (43) on its nuclear program.
North Korea (44) the six-party talks in (45) after Washington imposed financial sanctions for alleged counterfeiting and (46) activities.
A broadcast on North Korean State Television (47) the missile tests, in what it called a "successful (48) ".
It said North Korea will take action against anyone who (49) them.
The Minister is reported to have told a (50) that the missile launches were (51) because of America’s sanctions against Pyongyang.
North Korea remains (52) in the face of international condemnation and has warned (53) could be carried out.
UN Security Council members will (54) discussions tonight on whether a (55) condemning the missile launches should call for sanctions.

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患者男性,70岁,上腹部和腰背部疼痛3个月,以夜间为重,前倾坐位时疼痛可以减轻,体重减轻10kg。

其疼痛主要因为

A.后腹膜炎性刺激

B.腹前壁受损

C.胃肠道浆膜受侵犯

D.腹腔神经丛受侵犯或压迫

E.膈肌炎性刺激

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胎头娩出后首先要做的是

A.向上托胎颈
B.协助胎头复位
C.协助胎头外旋转
D.将胎颈部下压
E.挤出胎儿口鼻内的黏液和羊水

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