Kateoften____(try)tofinishherhomeworkherself,butit’stoohardforher.
Kateoften____(try)tofinishherhomeworkherself,butit’stoohardforher.
10.—Ithinkyouhavetoomuchluggage,don’tyou? A: es.Butit’snoteasytodecidewhattobehind. B: take C: turn D: keep E: Leave
10.—Ithinkyouhavetoomuchluggage,don’tyou? A: es.Butit’snoteasytodecidewhattobehind. B: take C: turn D: keep E: Leave
—_________isveryinterestingtoswimintheriverinsummer,butit’sdangerous. A: This B: That C: It D: He
—_________isveryinterestingtoswimintheriverinsummer,butit’sdangerous. A: This B: That C: It D: He
I_______buyaflat,butit’stooexpensive. A: amgoingto B: might C: wouldliketo
I_______buyaflat,butit’stooexpensive. A: amgoingto B: might C: wouldliketo
—DidyougotoKunmingonvacation?—No,butit’sagoodplace_____Ioftendreamofgoing. A: what B: which C: where D: That
—DidyougotoKunmingonvacation?—No,butit’sagoodplace_____Ioftendreamofgoing. A: what B: which C: where D: That
I'msorryyou'vebeenwaitingsolong,butit'llbesometime______Briangetsback. A: before B: since C: till D: after
I'msorryyou'vebeenwaitingsolong,butit'llbesometime______Briangetsback. A: before B: since C: till D: after
间隙配合,孔、轴偏差之间的关系是()。 A: ES>es B: EI≥es C: es>EI D: es≥EI
间隙配合,孔、轴偏差之间的关系是()。 A: ES>es B: EI≥es C: es>EI D: es≥EI
下列配合中,能确定孔轴配合种类为过渡配合的为()。 A: ES≥ei B: ES≤ei C: ES≥es D: es>ES>ei
下列配合中,能确定孔轴配合种类为过渡配合的为()。 A: ES≥ei B: ES≤ei C: ES≥es D: es>ES>ei
供给富有弹性表示为()。 A: Es<0 B: Es>0 C: Es<1 D: Es>1
供给富有弹性表示为()。 A: Es<0 B: Es>0 C: Es<1 D: Es>1
用Es表示供给弹性系数,则供给富于弹性表示为()。 A: Es=1 B: Es>1 C: Es=∞ D: Es=0
用Es表示供给弹性系数,则供给富于弹性表示为()。 A: Es=1 B: Es>1 C: Es=∞ D: Es=0