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【单选题】
关于活疫苗的叙述，错误的一项是A.
活疫苗是经人工培养使病原菌毒力发生变异或由自然界直接筛选出的
B.
活疫苗能在机体内繁殖并可抑制或干扰野毒株的增殖和致病性
C.
活疫苗比死疫苗用量小
D.
活疫苗可刺激机体产生特异性免疫，其维持时间一般比死疫苗长
E.
活疫苗比死疫苗易保存
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【多选题】下列关于藏族民俗文化的表述,错误的是( )。
A.
藏文的历史之悠久,仅次于汉文
B.
传统节日望果节原名酸奶宴
C.
主食糌粑,是用小麦炒熟磨成细粉
D.
藏族农区多垒石建房,牧区则住帐篷
E.
在已经公布的国家非物质文化遗产名录中,藏族入选的项目最多
【多选题】下列关于藏族民俗文化的表述,错误的是( )。
A.
藏文的历史之悠久，仅次于汉文
B.
传统节日望果节原名酸奶宴
C.
主食糌粑，是用小麦炒熟磨成细粉
D.
藏族农区多垒石建房，牧区则住帐篷
E.
在已经公布的国家非物质文化遗产名录中，藏族人选的项目最多
【单选题】( ) having a rest at home, he decided to go to theoffice.
A.
As for
B.
Because of
C.
Due to
D.
Instead of
【单选题】A photon having 40 keV scatters from a free electron at rest. What is the maximum energy that the electron can obtain? ( )
A.
5.41 eV
B.
4.32 eV
C.
7.95 eV
D.
1.73 eV
【简答题】(B) Studying makes you tired? How to deal with the worries and relax yourself? Here is some advice which may add happiness to your life. 1 Rest at weekends: Weekends are time for a rest. After a week'...
【单选题】--- you having supper at this time yesterday? ---No, I was .
A.
Are; having a rest
B.
Were; read a book
C.
Are; watching TV
D.
Were; singing
【简答题】An ant ( 蚂蚁 ) fell in a river. She tried her best to reach the bank ( 岸 ), but she couldn‟t move at all. A bird threw her a piece of wood out of pity ( 怜悯 ). With it the ant reached the bank again. Wh...
【简答题】My sister’s ten-year-old son came for a visit at the weekend one hot July. And I had to make him stay inside by joining him in a . An hour later, I suggested that we relax a while. He slipped out ...
【多选题】下列关于藏族民俗文化的表述,错误的是( )。
A.
藏文的历史之悠久，仅次于汉文
B.
传统节日望果节原名酸奶宴
C.
主食糌粑，是用小麦炒熟磨成细粉
D.
藏族农区多垒石建房，牧区则住帐篷
E.
在已经公布的国家级非物质文化遗产中，藏族入选的项目最多
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