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【单选题】
胎儿诞生时,剪断脐带后从切口流出来的血液应该是
A.
胎儿的动脉血;
B.
母体的动脉血和胎儿的静脉血;
C.
胎儿的动脉血和母体的静脉血;
D.
胎儿和母体的动、静脉血;
E.
母体的动静脉血
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参考答案:
举一反三
【简答题】cat –n 和 nl 均可以显示行号,但是默认情况下有什么区别?
【单选题】乙醛和过量甲醛在 NaOH 作用下主要生成 :
A.
(HOCH 2 ) 3 CCHO
B.
CH 3 CH 2 CH(OH)CHO
C.
C(CH 2 OH) 4
D.
CH 3 CH(OH)CH 2 CHO
【多选题】下列各项中属于混合销售行为的有( )。
A.
超市在销售商品的同时提供送货服务
B.
餐饮公司提供餐饮服务的同时又销售烟酒
C.
建材商店在销售木质地板的同时提供安装服务
D.
歌舞厅在提供娱乐服务的同时销售食品
【判断题】“... she felt the strange beast that had slumbered so long within her bosom stir, stretch itself...” In this sentence, the “strange beast” symbolizes Vera’s strong desire to conquer.
A.
正确
B.
错误
【多选题】有先兆的偏头痛发作可以分为下列各期(
A.
前驱期
B.
先兆期
C.
头痛期
D.
缓解期
E.
头痛后期
【简答题】She felt the strange beast that had slumbered so long within her bosom stir , stretch itself, yawn, prick up its ears, and suddenly bound to its feet, and fix its longing, hungry stare upon those far-...
【单选题】乙醛和过量甲醛在 NaOH 作用下主要生成 :
A.
B.
C.
D.
D
【多选题】不淬硬钢圆柱销直径公差有哪两种?
A.
m8
B.
m6
C.
h3
D.
h8
【简答题】Directions: Each of the following words can be used either as a noun or as a verb. Complete the following sentences with the proper form of the words given. intrigue A. The tourist was ________ by the...
【简答题】In the deep shade, at the farther end of the room, a figure ran backwards and forwards. What it was, whether beast or human being, one could not, at first sight, tell: it groveled, seemingly, on all f...
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