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【单选题】
红外分光光度计的光源是下列哪一个?
A.
氢灯
B.
钨丝灯
C.
能斯特灯
D.
氘灯
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参考答案:
举一反三
【单选题】某元素的原子最外层只有两个l=0的电子,该元素在周期表中必定不属于。
A.
s区元素
B.
ds区元素
C.
d区元素
D.
p区元素。
【单选题】______ by his class, he felt miserable in school.
A.
Looking down on
B.
Having looked down on
C.
To be looked down on
D.
Being looked down on
【单选题】---Did you see Jack in the teacher's office earlier today?---Yes.He_____by his class teacher.
A.
is being questioned
B.
was being questioned
C.
had been questioned
D.
was questioned
【多选题】下列各种物资中,不应当作为企业存货核算的有( )。
A.
工程物资
B.
房地产开发企业购入用于建造办公楼的土地
C.
房地产开发企业购入用于建造商品房的土地
D.
低值易耗品
E.
周转材料
【单选题】当(A)=0FH时,执行SETB ACC.7时,(A)=( )。
A.
00H
B.
FFH
C.
1FH
D.
8FH
【单选题】某元素的原子最外层只有两个 l =0 的电子,该元素在周期表中必定不属于
A.
s 区元素
B.
ds 区元素
C.
p 区元素
D.
d 区元素
【简答题】______ by his class, he felt miserable in school. (5.0分)A. Looking down on B. Having looked down on C. To be looked down on D. Being looked down on
【简答题】4 What did Smith do in his term paper for his economics class? How was the paper evaluated by his professor?
【单选题】______ by his class, he felt miseable in school.
A.
Looking down on
B.
Having looked down on
C.
To be looked down on
D.
Being looked down on
【判断题】明代初期洪升的《长生殿》是戏剧瑰宝。
A.
正确
B.
错误
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