用一根质量均匀的棍子打人,握住棍子的哪个位置可以使自己的手受到的反作用力最小()
A.顶端
B.正中间
C.三分之一处
参考答案:C
第二节(共5小题;每小题2分,满分10分)
根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。
61 .He called the doctor and made sure they would meet at five.He arrived at the doctor's at twenty to five.He thought,“It's a little bit earlier.I'll wait for a moment.It's good to keep the time.” 62 .He looked around and saw a noisy square(广场)not far from here.He went there and sat down on a chair to enjoy the last light of afternoon sun and make himself quiet. 63 .
Suddenly he heard a girl crying. 64 . Then he knew she got lost. John tried to find out her address and took her home.The girl's parents were very thankful.
65 .The doctor said angrily when he saw him, "You're late.Why did you keep me waiting for twenty minutes? " John said nothing but one word—"Sorry! "
A.Then he stopped his car in front of the doctor's
B.He came up to her and asked some questions
C.John sent for a doctor because his wife was ill
D.He felt angry with the doctorE. Then John hurried to the doctor's
F. The girl asked him for help
G. He saw some children playing and some women talking to each other happily
甲是一级施工企业,乙是二级施工企业。它们组成联合体投标,参加了资格预审并获通过,后来,他们决定吸收丙加入联合体,则下列说法中,正确的是( )。
A.如果丙是一级施工企业,就不用征得招标人同意
B.如果丙也通过了资格预审,就不用征得招标人同意
C.如果丙是三级企业,就不能被吸收进来
D.不管丙属于哪种情况,都必须要征得招标人的同意