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【单选题】
挪威科学家最新的研究显示,气候变暖将提高人类患腺鼠疫的可能性。这种病是由鼠疫杆菌 ( 宿主为啮齿动物 ) 引起的,鼠疫杆菌释放外毒素,会使患者出现中毒性休克综合征。科学家从病愈患者的血清中提取的抗毒素对腺鼠疫患者有显著疗效。下列说法正确的是A.
外毒素是一种抗原，能引起人体的免疫反应
B.
抗毒素是一种抗体，属于效应 T 细胞产生的淋巴因子
C.
外毒素和抗毒素的化学本质都是脂质
D.
该免疫过程属于细胞免疫
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【单选题】The basic meaning of a word is the core of word –meaning called the _______meaning.
A.
A . first
B.
derived
C.
central
D.
none of the above
【单选题】Synchronically, the basic meaning of a word is the core of word-meaning called_______.
A.
primary meaning
B.
derived meaning
C.
central meaning
D.
secondary meaning
【简答题】Synchronically, the basic meaning of a word is considered to be the core of word meaning, called the _______ meaning.
【单选题】The basic meaning of a word is the core of word meaning called the _____ meaning.
A.
first
B.
derived
C.
central
D.
none of the above
【单选题】Synchronically,the basic meaning of a word is the core of word meaning; it is called the _____.
A.
primary
B.
secondary
C.
central
D.
derived
【简答题】in the basic meaning of a word; actual
【单选题】下列生物质燃气中的焦油去除的方法中与其他方法不同的是( )
A.
喷淋法去除焦油和灰尘
B.
鼓泡水浴法去除焦油和灰尘
C.
干式过滤法去除焦油和灰尘
D.
催化裂解法去除焦油
【单选题】What is the basic meaning of the Internet?
A.
Computer connected with the computer
B.
Computer and computer network connections
C.
The computer network and computer network connections
D.
Domestic computer connected with the international computer
【单选题】What is the basic meaning of the word “Anorexia?”
A.
It means to not eat (or not want to) eat food.
B.
It means to purge all the food you eat.
C.
It means that you think you are fat.
D.
It means none of the above.
【简答题】in the basic meaning of a word
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