主页
学科
搜索
账户
常见问题
当前学科：制氧中级工
题目：
填空题
气瓶重量减少的百分率大于（）气瓶作报废处理。
答案：
<查看本题扣1积分>
查看答案
答案不对？请尝试站内搜索
推荐知识点:
出面下列哪项情况时，可行杓状软骨切除术及声带外展移位固定术（）。
治疗对室性早搏的首选药物是（）。
定居甲国的华侨王某与李某在甲国结婚，后王某在甲国起诉与李某离婚时被该国法院以当事人均具有中国国籍为由拒绝受理。王某转而在我国法院诉请离婚。根据我国现行司法解释，有关此案的管辖与适用法律，下列哪些选项是正确的?()
除特殊情况外，国家级专项规划应在批准后（）内向社会公布。
大出血会引起（）
Promising Results from Cancer Study A new experimental vaccine(疫苗)has shown promising results in the fight against lung cancer．In a small Texas-based study，a vaccine developed by scientists at Baylor University Medical Centre in Dallas，USA，cured lung cancer in some patients and slowed the progress of the disease in others． Researchers have reported encouraging findings from this small study．Forty-three patients suffering from lung cancer were involved in these trials．Ten of these patients were in the early stages and thirty—three in the advanced stages of the disease．They were injected with me Vaccine every two weeks for three months，and were carefully monitored for three years.In three of the patients in me advanced stages of cancer，the disease disappeared and in the others，it did not spread for five to twenty—four months．However，no great difference was seen in the patients in the early stages of the illness． This new vaccine uses the patients’own immune、system．It is made specifically for each patient and is injected into the arm or leg．It stimulates the body’s immune system，which then recognizes that the cancer cells are harmful，and attacks and destroys them. The vaccine could be effective against other forms of cancer．It offers great hope for the treatment of cancer in general，although further studies are needed before such treatment can be widely used．根据以上内容，回答题。The vaccine cured all the participants in the trial．
患者X线胸片表现：肺血增多，主动脉结大小正常，肺动脉段轻度突出，左心房和左、右心室增大。心血管造影检查表现不包括（）。
在网卡配置工具中的“网卡参数”中如果选择了“自动获取”选项那么网络在启动时会（）来使用。
气管、支气管覆有粘膜，其上皮成分为（）
塑料和橡胶的最高使用温度称为玻璃化温度。