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【单选题】
已知 sinα+3cosα 3cosα-sinα =5 ，则sin 2 α-sinαcosα的值是（ ）A.
2 5
B.
- 2 5
C.
-2
D.
2
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举一反三
【单选题】-- I'm trying to contact a friend Fred Ashley. -- _____.
A.
I don't know him
B.
Wrong number
C.
Just a moment
D.
I see
【单选题】I'm trying to think of his name, but my mind goes completely ______. I must be slipping.
A.
bare
B.
blank
C.
hollow
D.
vacant
【单选题】I was trying to get into the _____ bus when I heard a voice from behind
A.
crowd
B.
crowding
C.
crowds
D.
crowded
【多选题】下列有关宗教知识阐述正确的有（ ）。
A.
释家三尊是指普贤菩萨(右胁侍)、释迦牟尼佛(中)、文殊菩萨(左胁侍)
B.
中国第一座佛教寺庙——白马寺(河南洛阳)
C.
雍和宫三绝是指五百罗汉山、檀木大佛、金丝楠木佛龛
D.
塔尔寺艺术三绝是指酥油花、堆绣和壁画
【单选题】There is no doubt that I'm trying to do what is best, but ________ I have got to consider the cost.
A.
merely
B.
equally
C.
nearly
D.
mostly
【简答题】在调用一个函数的过程中，直接或间接地调用该函数本身，称为函数的_____调用。
【单选题】I am not really interested in dancing: I just ______ trying it.
A.
feel like
B.
want
C.
expect
D.
hope
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