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【单选题】
下列与信号转导有关的分子中,可激活蛋白激酶C的是A.
三磷酸肌醇(IP3)
B.
甘油二酯（DAG）
C.
磷脂酰肌醇二磷酸(PIP2)
D.
磷脂酶C-γ(PLCγ)
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皮皮学刷刷变学霸
举一反三
【单选题】Who did the most contributions to the Boston Post Road?
A.
Thomas Jefferson
B.
Benjamin Frankline
C.
Abraham Lincoln
D.
Joseph Smith
【单选题】—Can you tell me who used the _______ time to do the _______ work? —OK, Mary did. [ ]
A.
fewest; most
B.
least ; most
C.
less ; most
D.
fewest ; more
【单选题】– Who ran most__________ at the sports meeting in your class? -- Li Ming did. He won the first place.
A.
quickly
B.
politely
C.
loudly
D.
slowly
【单选题】---Who ran _____ of all in the sports meeting? ---- Jim did , I think.
A.
faster
B.
most fast
C.
fastest
D.
fast
【单选题】Who did most of the cooking at Todd’s house?
A.
His mother.
B.
His father.
C.
His sister.
D.
His brother.
【单选题】The youth (who, whom) they said was the most advanced in the group did prove to be the leader.
A.
who
B.
whom
【单选题】当列车发生火灾等紧急情况，需要疏散时，乘客需做到：（）
A.
按下地铁车厢的紧急报警或对讲装置及时报告。
B.
一般情况下，列车会行驶到就近的车站进行疏散。列车行驶至车站时，从已经打开的车门疏散到站台，听从车站工作人员统一指挥，沿着正确逃生方向进行疏散。如果车门和屏蔽门没有打开，利用车门紧急开门装置和屏蔽门手动解锁装置打开车门和屏蔽门
C.
如果列车在隧道内无法运行，需要在隧道内疏散乘客时，此时，乘客要密切留意列车上的广播，切不可慌乱，并要在司机的指引下，沉着冷静、紧张有序进行疏散
D.
以上都对
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