皮皮学，免费搜题
登录
搜题
【单选题】
The ability of two polynucleotide strands to hybridize is based on which of the following principles?A.
double helical nature of DNA
B.
the presence of phosphodiester bonds
C.
complementary base pairing
D.
the presence of 3' and 5' ends
E.
the presence of covalent bonds
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【简答题】阅读理解。 Don't open the door to strangers It was Sunday afternoon. My brother and I were at home. My parents had gone to a party and asked me to look after my brother. Suddenly the doorbell rang. Ding-do...
【简答题】沥青玛碲脂碎石路面SMA拌合、摊铺和碾压温度均较常规路面施工温度要求高不得在天气温度低于（ ）的气候条件下施工。
【单选题】Don't open the door until the car _______. [ ]
A.
stop
B.
stops
C.
stopped
D.
will stop
【简答题】派遣 ___(原型) ___(过去式) ___(过去分词)
【单选题】Don't open the door until the bus ______. [ ]
A.
stop
B.
stops
C.
stopped
D.
will stop
【单选题】沥青碎石路面用（）作面层的路面，其高温稳定性好，路面不易产生波浪，冬季不易产生冻缩裂缝，行车荷载作用下裂缝少。
A.
矿料
B.
乳化石油沥青
C.
沥青玛碲脂碎石
D.
沥青碎石
相关题目：