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【简答题】
(每空1分,画图3分,共10分)某实验小组的同学用伏安法测量小灯泡电功率,待测小灯泡额定电压为3.8V,小灯泡的额定功率估计在1W左右。 (1)连接电流表时用__________的量程。
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A.
压力表
B.
单流阀
C.
针型阀
D.
闸门
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【单选题】She'd like ______ with you. She wants some help.
A.
to tell
B.
to say
C.
to talk
【单选题】急性呼吸性碱中毒的血气参数变化是
A.
PaCO2降低,BB增高
B.
PaCO2降低,AB=SB
C.
PaCO2降低,BE负值减少
D.
PaCO2降低,AB
【单选题】- Can I pay the bill by check? -- Sorry, sir. But it is the management rules of our hotel that payment ______ be made in cash.
A.
can
B.
shall
C.
will
D.
may
【单选题】She'd like _with you. She wants some help
A.
to talk
B.
tell
C.
to say
【单选题】急性呼吸性碱中毒的血气参数变化是
A.
PaCO2降低,AB=SB
B.
PaCO2降低,BB增高
C.
PaCO2降低,AB
D.
PaCO2降低,AB>SB
【单选题】在电装公司ECD-V1型电子控制分配泵系统中,ECU控制油量调节换套的最大位移量约为:
A.
2 mm
B.
10 mm
C.
20 mm
【单选题】急性呼吸性碱中毒的血气参数变化是
A.
PaCO 2 降低,BB增高
B.
PaCO 2 降低,AB=SB
C.
PaCO 2 降低,BE负值减少
D.
PaCO 2 降低,AB
E.
PaCO 2 降低,AB>SB
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