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【单选题】
已知: var test = { x1 : [1, 2, 3, 4, 5], x2 : 'hello', x3 : { y1: false, y2: null, } } 以下哪句可以在Console控制台输出y1的值?A.
console.log(y1)
B.
console.log(x3.y1)
C.
console.log(test[0].x3.y1)
D.
console.log(test.x3.y1)
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反馈参考答案：
举一反三
【单选题】( ) 是用一个单位长度(如 1 厘米)表示一定的数量,根据数量的多少,面成长短相应成比例的直条,并按一定顺序排列起来的统计图。
A.
条形图
B.
面积图
C.
饼图
D.
折线图
【单选题】When the waiter recommend some vegetables for the guest, he could use the sentence pattern to recommend:___________________.
A.
Would you like some vegetables for your lunch?
B.
Are you ready to order now?
C.
Hope you enjoy your meal.
D.
You have order......Am I correct?
【简答题】条形统计图是用______表示一定的数量，根据数量的多少画成长短不同的______，然后把这些______按照一定的顺序排列起来．从条形统计图里很容易看出______．
【简答题】*.如附图所示,两槽敞口,已知离心泵吸入管路直径 d1 = 80mm,吸入管长为 6m,吸入管摩擦阻力系数为0.02;压出管路直径d2 = 60mm,管长为13m,摩擦阻力系数为0.03。管路中流量为1.2× /s,阀门E局部阻力系数为6.4,吸入管段和压出管段各有一90°弯头,该局部阻力系数为0.75。求: (1)吸入管段总阻力为( )/kg; (2)压出管路总阻力为( )J...
【单选题】—Can I use your dictionary? —I __ _ I could lend it to you, but it's at home. [ ]
A.
hope
B.
think
C.
wish
D.
am afraid
【单选题】听力原文： Could you tell me where the talk on International Banking is going to take place? It says in the programme that it's in Room 121 but I've just been up there and it's empty. I hope it hasn't been...
A.
waiter
B.
conference delegate
C.
builder
D.
bank manager
E.
hotel receptionist
F.
security guard
G.
telephone engineer
H.
secretary
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