What does the phrase “clam up” in Paragraph 2 probably mean?A．become excitedB．show respectC．refuse to talkD．seek help
What does the phrase “clam up” in Paragraph 2 probably mean?
A．become excited
B．show respect
C．refuse to talk
D．seek help
相关考题：
They are all _________ at the _______ news.A、exciting; excitedB、excited; excitingC、 exciting; excitingD、excited; excited
x线平均波长(λmean)与最短波长(λmin)的 关系是A.λmean =3λminB.λmean =2.5λmin x线平均波长(λmean)与最短波长(λmin)的 关系是A.λmean =3λminB.λmean =2．5λminC.λmean =2λminD.λmean =l．5λminE.λmean=λmin
已知Lxx=∑(x－mean(x))2=400,Lyy=∑(y－mean(y))2=3000,Lxy=∑(x－mean(x))·(y－mean(y))=－1000;则相关系数r=()。注:mean(x)、mean(y)分别为x,y的均值。 A.0.925B.-0.913C.0.957D.0.913
X线平均波长(λmean)与最短波长(λmin)的关系是A．λmean=3λminB．λmean=2.5λminC．λmean=2λminD．λmean=1.5λminE．λmean=λmin
4．—_________ Mike________ his homework in the evening?—No，he doesn't．A． Do；doesB． Does；doC． Do；doD． Does；does
Which of the following may illustrate the difference between "competence" and__________ "performance"?A．What a person "knows" and what he/she "does".B．What a person "can do" and what he/she "does".C．What a person "does" and what he/she "knows".D．What a person "does" and what he/she "can do".