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【单选题】
将森林F转换为对应的二T,F中叶结点的个数等于()A.
T中叶结点的个数
B.
T中度为1的结点个数
C.
T中指针为空的结点个数
D.
T中右孩子指针为空的结点个数
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皮皮学刷刷变学霸
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【单选题】枝干粗糙，有较多裂纹，圆锥花序，偶数羽状复叶4-6对，核果,果肉甜，干燥后有补血安神的效果，常作产妇滋补用。这是哪种植物的特征（ ）。
A.
荔枝
B.
龙眼
C.
两面针
D.
金樱子
【简答题】角色游戏活动中教师的观察要点
【单选题】____ racial problems have not been solved and full equality has not been attained yet, progress in these directions has been quite remarkable
A.
Since
B.
Although
C.
Now that
D.
Before
【单选题】三出复叶，小叶常3浅裂，总状花序，蝶形花紫红色，荚果，纺锤形块根富含淀粉，有解肌退热之功。这是哪种植物的特征（ ）。
A.
葛根
B.
天胡荽
C.
积雪草
D.
酢浆草
【简答题】简述角色游戏活动中教师的观察要点及目的。
【单选题】S1: Do you have any idea about the passenger ships? S2: Yes. Passenger liner, car and passenger ferry and cruise ship are all passenger ships. Q: What kind of ship is not mentioned in the dialogue?
A.
Passenger liner.
B.
Ro-ro
C.
Ferry.
D.
Cruise ship.
【单选题】Andrea looked in the passenger's bag to ______
A.
examine what was in it
B.
find out where the passenger lived
C.
use the passenger's tools
D.
find out who the passenger was
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