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【单选题】
向量积的运算错误的是()
A.
交换律ab=-ba
B.
分配律(a+b)c=ac+bc
C.
交换律ab=ba
D.
(ka)b=a(kb)=k(ab)(k为常数)
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参考答案:
举一反三
【单选题】I do not think it wise for Judy to lose weight by substituting fruit_______.
A.
with
B.
for
C.
as
D.
by
【多选题】下列哪些疾病可引起巨脾
A.
急性肝炎
B.
骨髓纤维化
C.
亚急性细菌性心内膜炎
D.
慢性粒细胞性白血病
E.
黑热病
【单选题】()提出加强部署地震台站,检测地壳内部地应力分布状态,积极开展预报。
A.
B.
C.
张青松
D.
丁林
【单选题】______the fund is concerned, I do not think it matters.
A.
In case
B.
As far as
C.
As long as
D.
As much as
【单选题】下列不属于金融期货交易制度的是( )。
A.
逐日盯市制度
B.
连续交易制度
C.
限仓制度
D.
保证金制度
【单选题】_________ the internet is _________, I do not think it is a good idea to spend too much time on it.
A.
When ; helpful
B.
As ; great help
C.
While ; of great help
D.
Now ; of no help
【单选题】()the weather is concerned, I do not think it matters.
A.
So long as
B.
So far as
C.
As long as
D.
So far
【简答题】Dec. 24, 1848 Dear Johnston, Your request for eighty dollars, I do not think it best to satisfy now. At the various times when I have helped you a little, you have said to me, “We can get along very w...
【多选题】下列哪些疾病可引起下颌骨膨胀性多房性表现
A.
造釉细胞瘤
B.
巨细胞瘤
C.
含牙囊肿
D.
骨纤维囊变
E.
嗜酸性肉芽肿
【多选题】下列哪些疾病可引起肝、脾肿大()
A.
白血病
B.
再生障碍性贫血
C.
遗传性溶血性贫血
D.
淋巴瘤
E.
营养性巨幼细胞贫血
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