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【单选题】
关于铝合金焊接的说法正确的是（）？A.
使用较低功率的热源
B.
焊接前需要预热
C.
薄的铝板可以不用预热
D.
铝合金焊接不易产生焊接变形
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举一反三
【多选题】The teacher asks the students to imagine 2 images of Spud Webb in paragraph3.Which of the following is the purpose of the design?
A.
Through imagination and standing in the coach's perspective to restore the meaning of "mind”, the students will understand the text more deeply.
B.
The students are encouraged to think about how Spud held fast to his dream in senior by standing in Spud's perspective .
C.
T he students can more directly and profoundly perceive Spud’s loneliness and hardship in the journey of pursuing dreams .
D.
T he teacher leads the students to experience personage's emotion and develop the their deep thinking.
【单选题】下列函数在x=0处连续的是（ ）
A.
f（x）= -1，(x≤0) x-1，(x＞0)
B.
f（x）=lnx
C.
f（x）= |x| x
D.
f（x）= -1，(x＞0) 0，(x=0) 1，(x＜0)
【单选题】下列表达式中，可以正确表示x≤0或x)1的关系是( )。
A.
(x＞=1)||(x＜=0)
B.
x＞l||x=0
C.
x＞=1 OR x＜=0
D.
x＞=1 && x＜=0
【单选题】Which of the following features is NOT one of the design features of language?
A.
Symbolic.
B.
Dual.
C.
Productive
D.
Arbitrary.
【单选题】下列表达式中，可以正确表示x≤0或x≥1的关系是( )。
A.
(x＞=1)‖(x＜=0)
B.
x＞1‖x=0
C.
x＞=1 OR x＜=0
D.
x＞=1 && x＜=0
【简答题】Which ofthe following features is NOT one of the design features of language?A. a. Symbolic. B. b. Dual. C. c. Productive. D. d. Arbitrary.
【单选题】Which of the design elements refers to the visual effect of tactile surface quality? _____________
A.
line
B.
texture
C.
color
D.
form
【简答题】2. Which
of the following features is NOT one of the design features of language?A. a. Symbolic. B. b. Dual. C. c. Productive. D. d. Arbitrary.
【单选题】Which of the following is not the design goal of 'mother'? 查看材料
A.
To answer the questions suddenly appeared in users' mind.
B.
To meet users' needs anywhere and anytime.
C.
To fulfil users' ever-changing requirements.
D.
To attract more users by its name——'Mother'.
【多选题】舞蹈卡农创编技法就是将音乐作曲法中的卡农技术运用到编舞中,是指选择在__、__及__上有对比的短句进行同一主题、同一舞句的完全重复。
A.
时间
B.
空间
C.
场域
D.
力度
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