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【单选题】
When it comes to smoking, pragmatists believe
A.
people should be encouraged to smoke considering economic interests.
B.
it is sensible to introduce safer cigarettes since many people won't quit.
C.
the US government should spare no effort to ban smoking in public.
D.
the tobacco industry should export cigarettes to undeveloped countries.
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【判断题】婴幼儿头围大小间接反映颅骨及脑的发育,出生后2年内头围增加迅速,1岁时头围平均为46厘米。
A.
正确
B.
错误
【单选题】Some people are waiting the bus the bus stop. [     ]
A.
for;for
B.
at;at
C.
for;at
D.
at;for
【单选题】SOLAS stands for____.
A.
the International Convention for the Safety of the Life at Sea
B.
the International Convention for the Prevention from ships
C.
the International Convention on Standards of Training, Certification and Watch keeping for Seafarers
D.
the International Convention for the Control and Management of Ship’s Ballast Water and Sediments
【单选题】下列有关细胞分裂和分化的叙述,错误的是(  )
A.
细胞分裂过程中,细胞内变化最明显的结构是细胞核
B.
癌细胞分裂产生的新细胞染色体数目不改变
C.
癌细胞分裂产生的新细胞基因发生了改变
D.
利用干细胞可成功修复患者受损神经细胞的依据是细胞分化原理
【简答题】A.Meet at the Captain's Table for dinner on Saturday at 7 o'clock. B.Meet at the Captain's Table for dinner on Sunday at 7 o'clock. C.Meet at the Captain's Table for dinner on Saturday at 8 o'clock. D...
【单选题】在细胞的分裂和生长过程中,变化最明显的结构分别是( )。
A.
细胞壁和细胞膜
B.
细胞膜和细胞核
C.
细胞核和液泡
D.
细胞膜和液泡
【单选题】婴幼儿头围大小间接反映颅骨及脑的发育,出生时头围平均为( )厘米。
A.
42
B.
40
C.
34
D.
28
【单选题】细胞分裂过程中,变化最明显的结构是 ( )
A.
细胞质
B.
细胞膜
C.
细胞核中的染色体
D.
细胞壁
【简答题】下列有关细胞分裂和分化的叙述,错误的是(   ) A.细胞分裂过程中,细胞内变化最明显的结构是细胞核 B.癌细胞分裂产生的新细胞染色体数目不会改变 C.癌细胞分裂产生的新细胞基因发生了改变 D.利用干细胞可成功修复患者受损神经细胞的依据是细胞分化原理
【单选题】When do the students pay for the meals they contract for?
A.
When they get the meal.
B.
At the beginning of the week.
C.
At the beginning of the year.
D.
At the end of the year.
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