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【简答题】
如图所示,这个卦,三条连线在上为乾,表示天;三条断线在下为坤,表示地。在64卦中,它表示的是___卦。
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反馈参考答案：
举一反三
【单选题】——What’s your mother? ——She_________ a teacher, but now she is a doctor.
A.
used to be
B.
was used to
C.
use to be
D.
is used to be
【单选题】-Peter, what’s your mother doing now? -She ____________in the kitchen.
A.
cooks
B.
is cooking
C.
will cook
D.
Cooked
【单选题】Tony: What’s your mother__________ now? Lingling: She’s __________ our house and sweeping away bad luck.
A.
doing; cleaning
B.
do; clean
C.
does; cleans
D.
doing, clean
【单选题】---What’s your mother like? ---- .
A.
She likes reading
B.
She is outgoing
C.
She cooks well
D.
She looks after my father
【多选题】安装在车床主轴上的夹具,根据被加工工件定位基准和夹具的结构特点,可分为()等类型。
A.
以工件外圆为定位基面的卡盘和夹头式车床夹具，如自定心卡盘及各种定心夹紧卡头等
B.
以工件内孔为定位基面的心轴式车床夹具，如各种定位心轴（刚性心轴）和弹簧心轴等
C.
以工件顶尖孔定位的车床夹具，如顶尖和拨盘等
D.
以工件的不同组合表面定位的 角铁和花盘式夹具
【单选题】—Peter, what’s your mother doing now? —She____________in the kitchen.
A.
cooks
B.
is cooking
C.
will cook
D.
cooked
【单选题】- What’s your mother doing now? - She the room.
A.
cleaned
B.
cleans
C.
has cleaned
D.
is cleaning
【单选题】—What’s your mother__________ now？ —She’s __________ our house.
A.
doing, clean
B.
do; clean
C.
does; cleans
D.
doing; cleaning
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