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【单选题】
若点P在第四象限，且点P到x轴的距离为4，到y轴的距离为2，则点P的坐标为（ ）A.
（-2，4）
B.
（4，-2）
C.
（2，-4）
D.
（-4，2）
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皮皮学刷刷变学霸
举一反三
【单选题】are usually mounted on the back of the radiator .
A.
Grills
B.
Radiator fans
C.
Expansion tank
D.
Upper hoses
【单选题】They then refilled my radiator and gave me extra bananas to take along in case my radiator should give me trouble again. (para. 4)
A.
They then refilled my radiator and gave me extra bananas to take along so that my radiator should give me trouble again.
B.
Then my radiator was filled again by them and I was provided with more bananas as a precaution if my radiator should leak again.
C.
T hey then refilled my radiator and gave me more bananas to take along because my radiator would give me trouble again.
【简答题】十二经脉中，从胸走手的是 ① ；从手走头的是 ② ；从头走足的是 ③ ；从足走胸腹的是 ④ 。
【简答题】在下图 所示的电路中,电阻值为( ) Ω 。
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