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【单选题】
以下关于透射电镜的描述哪—条不正确（）A.
其观察样品需做成厚度一般为40～50nm超薄切片
B.
用电子枪发射的高速电子束（电子流）代替光学显微镜的照明的光线
C.
用特殊的电极或磁极（静电透镜和磁透镜）代替光学显微镜的聚光镜的作用
D.
镜筒内为真空环境
E.
适于观察细胞的内部构造
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举一反三
【单选题】Linguistic Competence it is concerned with ( ), its form and meaning.
A.
link units of speech together
B.
the appropriate use of the language
C.
communicative breakdown
D.
the knowledge of the language itself
【简答题】It is concerned with how we handle, move, store materials.
【单选题】在银翘解毒片的显微定性鉴别中,花粉粒黄色,类球形,有三孔沟,表面具细密短刺及圆粒状雕纹,为哪味药的特征。( )
A.
金银花
B.
桔梗
C.
连翘
D.
甘草
E.
淡竹叶
【单选题】The following statements refer to strategic planning:(i) It is concerned with quantifiable and qualitative matters.(ii) It is mainly undertaken by middle management in an organisation.(iii) It is conc...
A.
(i) and (ii) only
B.
(i) and (iii) only
C.
(ii) and (iii) only
D.
(i), (ii) and (iii)
【单选题】The following statements refer to strategic planning: (i) It is concerned with quantifiable and qualitative matters. (ii) It is mainly undertaken by middle management in an organisation. (iii) It is c...
A.
(i) and (iii) only
B.
(i), (ii) and (iii)
C.
(i) and (ii) only
D.
(ii) and (iii) only
【简答题】American architecture is (71) its best when it is concerned with (72) that have a practical purpose. Factories, office buildings, public buildings, rail terminal and airports, and other such (73) show...
【简答题】It is concerned with how we control materials.
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