某粒子含有6个质子,7个中子,电荷为0,则它的化学符号是 A.13Al B.1

题型:选择题

问题:

某粒子含有6个质子,7个中子,电荷为0,则它的化学符号是

A.13Al  

B.13Al    

C.13 C 

D. 13 C

考点:构成物质的粒子—分子、原子、离子元素周期律
题型:选择题

在X线片上显示为灰黑色和深黑色()

A.骨骼和钙化

B.肌肉和内脏

C.结缔组织

D.软骨

E.脂肪和气体

题型:选择题

同义句句型转换,每空一词。

小题1:Don’t waste the old things.Try to reuse them.

It’s________ ________ throw away the old things.Try to reuse them.

小题2:Would you like to talk to me for few minutes ?

Would you like to have a _________ _________ me ?

小题3:If you study harder , your English will improve.

If you study harder , your English will ________ ________.

小题4:The Monkey King makes each room disordered in heaven.

The Monkey King _____ a ______in each room in heaven.

小题5:My father decided not to smoke any more.

My father ________ ________ smoking.

题型:选择题

胆管癌的主要临床表现是

A.厌食.恶心呕吐

B.腹痛、黄疸

C.腹痛、黄疸和寒战、高热

D.无痛性黄疸

E.体重明显减轻

题型:选择题

跨行交易会出现差错吗?

题型:选择题

邪热炽盛,煎灼津液,伤及营血,燔灼肝经,可以形成

A.风气内动
B.寒从中生
C.湿浊内生
D.津伤化燥
E.火热内生

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