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【单选题】
we should keep our- clean.A.
teeth
B.
tooth
C.
tooths
D.
toothes
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【单选题】The key is that ____ full your schedule is, only when you try really hard ____ always fit some more things in it [ ]
A.
no matter how; can you
B.
no matter what; can you
C.
however; you can
D.
whatever; can you
【简答题】What’s the problem theworld is flow facing? Theworld is not only hungry but it is also thirsty for___________
【多选题】儿茶酚胺对心肌细胞离子通道的影响是______。
A.
增强心室肌细胞平台期Ca 2+ 内流和RYRCa 2+ 释放
B.
增强窦房结细胞4期的内向电流
C.
降低肌钙蛋白与Ca 2+ 的亲和力
D.
促进心室肌细胞0期Na + 的内流
E.
促进房室结细胞0期Ca 2+ 的内流
【单选题】The thinking of a motion can be excited only when______.
A.
even persons are promoted to thinking beings
B.
big and vital issues are widely debated
C.
great thinkers have been brought up
D.
people allow themselves to think independently
【单选题】The priest asked the only listener if he would be willing to have a shortened service. This suggests ________.
A.
he preferred a short one
B.
he wanted to leave soon
C.
the only listener couldn't arouse his spirits
D.
he was a priest fond of only short prayers
【单选题】What time was lunch in the hotel?
A.
From twelve o'clock to one o'clock.
B.
Only after one thirty.
C.
From half past twelve to half past thirteen.
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